# Ppt on series and parallel circuits

##### 18 Electric Circuits Connecting light bulb What you need  three light bulbs  a number of connecting wires  a battery What to do 1. Try to connect the.

? If not how many design can you find? 3. Connect the circuit you designed and see if it works. There are 4 possible designs.  In which design are the bulbs the brightest? In which design are they the dimmest? The bulbs connected in parallel with 3 branches The bulbs connected in series  In which design do you think the battery will last the longest/

##### Electric Circuits containing resistors. Circuits Charges travel in a circuit to maintain charge balance.

is the sum of the resistors’ currents. The effective resistance is less than for any individual resistor. Formula is R = Series and Parallel Circuit Circuit resistance = R 1 + 1/R 2 + 1/R 3 1 Group Work Determine current direction, current, voltage, and power dissipated for each resistor. 12  6  9  18  9  8  10  3  18  9  Group Work 4.Determine the power for each/

##### Measurement Techniques DC Circuits Feb. 2009. Measurement Techniques DC Circuits Resistance (R) –Ohms, Ω, KΩ, MΩ Voltage (V) –Volt, AC, DC, mV, KV Current.

Vs R1R2R3 ITIT I1I1 I2I2 I3I3 I T = I 1 + I 2 + I 3 I 2 + I 3 Parallel Circuits Current Calculations ITIT I1I1 I3I3 I2I2 R1R 2 R3 Vs To measure current the circuit must be broken and the current meter must be placed in series with the component. Calculating Total Current (I T ) 1.First find total resistance R T R1 150 Ω R2/

##### Chapter 23 Series and Parallel Circuits. Types of Circuit There are two types of electrical circuits; SERIES CIRCUITS PARALLEL CIRCUITS.

Chapter 23 Series and Parallel Circuits Types of Circuit There are two types of electrical circuits; SERIES CIRCUITS PARALLEL CIRCUITS The components are connected end-to-end, one after the other. They make a simple loop for the current to flow round. SERIES CIRCUITS If one bulb ‘blows’ it breaks the whole circuit and all the bulbs go out. PARALLEL CIRCUITS The current has a choice of routes. The components are connected side by side. If one/

##### Notes on Chapter 35 Electric Circuits

SINGLE (Cell) DOUBLE HIGH (Battery) VOLTAGE Connecting wire – Black line Electric Circuits Connecting wire – Black line Electric Circuits Open switch Electric Circuits Closed switch Electric Circuits Resistance Electric Circuits COMBINING RESISTORS: Series and Parallel See Fig. 35.8 Electric Circuits When in series, the resistance ADDS up to a larger resistance. Very bright Bright Dimmest Electric Circuits When in Parallel, the resistance SUBTRACTS to a smaller resistance. Bright Same Bright Same Bright/

##### S2 Electricity and circuits Revision Quiz To begin click the button below.

increase the number of bulbs in a series circuit, the bulbs will Get dimmer Stay the same brightness Get brighter Well Done! That’s right, in a SERIES circuit, adding more bulbs makes them dimmer In a PARALLEL circuit, adding more bulbs has no effect on/Done! Ammeters must be connected in series Increasing the current will give a bigger reading on the ammeter and make a bulb brighter Question 7 Voltage is the amount of energy carried by the charges round the circuit We measure voltage using what? Voltmeter/

##### I R V Voltage – Energy lost by the electrons through the circuit. Current – Number of electrons moving through the circuit. Resistance – the ability of.

schematic diagrams predict what happens to voltage and current when cells are connected in series or parallel compare resistance in series and parallel. Connected end-to-end with another – (-) to (+) Voltage is the sum of the cells in series. Current produced is same as single cell. 2 - 1.5 volts cells in series = 3.0 volts in the circuit. Cells in Series Cells in Parallel Connected side-by-side – (-) to (-), (+) to/

##### Unit 8 Combination Circuits

reciprocals of the branch resistances. Unit 8 Combination Circuits Review: Combination circuits are circuits that contain both series and parallel branches. A node is where three or more paths come together. The total power is the sum of all the circuit resistors’ power. Unit 8 Combination Circuits Review: When solving combination circuits, simplify, reduce, and redraw equivalent value circuits. Apply the series rules and the parallel rules selectively to various parts of the combination/

##### Series and Parallel Circuits. Circuits IIn order for electricity to flow we need PPower source CClosed circuit TThere are two type of circuits.

Series and Parallel Circuits Circuits IIn order for electricity to flow we need PPower source CClosed circuit TThere are two type of circuits we will explore SSeries circuit PParallel circuit Series Circuit IIn a series circuit there is only one path for the electrons to flow IIn other words all the components are in series with each other BBecause there is only one path each charge will go/

##### Circuits Energy & Environment. Simple Circuit G -ve +ve Wire Lamp Switch Fuse Battery Power Source Safety Device Controlling Device Purpose Connect circuit.

way? Results in excessive current Which can cause overheating and damage. Circuits are protected against excessive current by fuses Series Circuit G -ve +ve Where could we put this bulb if we want to add it in series? Series Circuit: Current G -ve +ve If the current through the/ 1 +V 2 +V 3 Series Circuits If this bulb blows what happens to the other bulbs? The circuit is open so there is no path for the current to travel. If current=0 Power=0 As power=EMF x Current Parallel Circuit G -ve +ve Where could /

##### Chapter 35: Electric Circuits

/R3… Add parallel resistances first Make the circuit appear to be series Add series resistances 35.7 Parallel Circuits & Overloading Homes are fed with parallel circuits from utility companies More appliances added allows for lower resistance for the current Greater current can occur in the wires Overloaded- higher amount of current in wires than is safe Fire may result Short Circuit- a new, shorter path is offered and often bypasses/

##### Chapter 5 & 6 Dr. Farid Farahmand CET 236. Outline Identify a series/parallel circuit Determine the current and voltage in a circuit Determine total resistance.

Farahmand CET 236 Outline Identify a series/parallel circuit Determine the current and voltage in a circuit Determine total resistance Apply Ohm’s law Apply Kirchhoff’s voltage law Series Circuit A series circuit provides only one path for current between two points current is the same through each series resistor. Find the total resistance in a series circuit sum of the resistances of each individual series resistor. R T = R 1 + R/

##### Resistors in Series Introduction Two types of current are readily available, direct current (dc) and sinusoidal alternating current (ac) We will first.

system The electrical system on a car is essentially a parallel system. Parallel computer bus connections The bus connectors are connected in parallel with common connections to the power supply, address and data buses, control signals, and ground. Expanded view of an automobile’s electrical system. Application of a Parallel Circuit One advantage of a parallel circuit over a series circuit is that when one branch opens, the other branches are/

##### Resistance: friction that impedes flow of current through the circuit (rocks in the river) How you should be thinking about electric circuits:

of these items are insulators? What ’ s the Best Pathway for Electrons? There are two main types of circuits: ParallelSeries and Parallel circuits are circuits with more than one pathway through which electrons can flow. Series circuits are circuits with only one pathway through which electrons can flow. Series and Parallel Circuits Comparison Series CircuitParallel Circuit Definition Resistance Examples Only one path for current to flow Multiple paths for current to flow Total resistance/

##### Current Electricity. An electrical current is a flow of charged particles (electrons or ions) through a circuit.

can flow Metals are good conductors Other materials like carbon or water are also good conductors Schematic diagrams are diagrams of electric circuits Symbols are used to represent different parts of an electrical circuit Schematic Diagram Series and Parallel Circuits Series circuits have a single pathway for the current Parallel circuits have more than one pathway for the current Meters are used to measure current, voltage or resistance in a/

##### Electric Circuits A circuit is a path where a current can flow If the flow is to be continuous, the can be no gaps in the path Introduce gaps in the form.

series The other is called parallel Each has unique properties which we now examine Series Circuits A single pathway through the circuit The current is the same everywhere in the circuit Each device provides resistance and total resistance is the sum of the devices Voltage divides among the devices Voltage drop across each device is Ir device Parallel Circuits/ questions Let’s do some sample calculations Series Circuit Calculation 12 Volt 10 ohm20 ohm30 ohm Parallel Circuit Calculation 12 Volt 10 ohm 20 ohm /

##### Basic Electric Circuits. A series connection has a single path from the battery, through each circuit element in turn, then back to the battery. Resistors.

currents entering a junction equals the sum of the currents leaving it. For these circuits we use Kirchhoff’s rules. Some circuits cannot be broken down into series and parallel connections. At junction - a Kirchhoff’s Rules and Complex DC Circuits Direct Current Circuits Which diagram shows correct current direction in a segment of an electric circuit? (A) (B) (C) (D) Review of Chapter Equivalent resistance of resistors in/

##### R Ch 35 Electric Circuits pg 1 Text RQ pg 559 RQ 3, 5, 7-9, 11-15.

to follow R Ch 35 Series Circuits pg 4 Series circuits have a single path for the electrons to follow. Series circuits are only used in cheap xmas lights because a single break in the circuit kills the whole circuit R Ch 35 Parallel Circuits pg 5 Parallel circuits have multiple paths for the electrons to follow, so any one device can be turned off or on and not effect the rest of/

##### Circuits. Series Circuits Series circuits are the type of circuits that most Christams tree lights have. If one bulb goes out, all the bulbs go out.

Circuits Series Circuits Series circuits are the type of circuits that most Christams tree lights have. If one bulb goes out, all the bulbs go out. Parallel Circuits Parallel circuits are the type of circuits that are used in houses. If one bulb goes out…..(your tv goes out), all the other things……refrigerator, lights, and radio can still work. Open circuit An open circuits is when the electricity can not flow (since it needs/

##### 1 HVACR - Refrigeration Series and Parallel Circuits.

1 HVACR - Refrigeration Series and Parallel Circuits 2 Series Circuits A series circuit has one single path for current flow. The loads are arranged so current must flow through load #1, then load #2, then load #3. If the connection is broken anywhere, or if one load fails, current flow stops in the entire circuit. A series circuit has one single path for current flow. The loads are arranged so current must/

##### Series/Parallel Circuits. I1I1 + - VR2R2 R3R3 I2I2 I3I3 ITIT R1R1.

. 3. Do this for all the Parallel Paths. 4. Do your calculation on the Series Circuit. } 1 R 23 1R21R2 1R31R3 =+ 1 R 23 1414 1414 =+ R 23 = 2Ω + - V=10v R 3 =4Ω R 1 =8Ω R 2 =4Ω Block + - V=10v R 1 =8Ω R 23 =2Ω R 23 is an equivalent resistor to R 2 and R 3. R T = R/

##### Parallel Circuits Paul Barnes. Contents Slide 3………What you want to find Slide 4………Finding Voltage for simple currents. Slide 5………Finding Resistance Slide.

parallel part of the circuit and the individual R n ’s refer to the individual resistors in parallel. Finding Current To find current, use Ohm’s Law for any individual resistance across a parallel circuit or for the total resistance across the parallel circuit./ Parallel Circuits Voltage: If there are parallel circuits within parallel circuits such as in the diagram below, you must keep in mind that voltage is the same across each piece of a parallel circuit. Since there are no resistors in series below/

##### Electric Circuits Series and Parallel Circuits. Light a bulb  You are given: Wires, a bulb and a battery. Your job is to: Light the bulb.

Electric Circuits Series and Parallel Circuits Light a bulb  You are given: Wires, a bulb and a battery. Your job is to: Light the bulb. To light a bulb, the most important thing is:  There must be a complete path, or NO GAPS. This is a CIRCUIT. Electric Circuit  An electric Circuit is any path along which electrons can flow.  For a continuous flow of electrons, there must be no/

##### Chapter E6 Analyzing Circuits Chapter E3 problems due today.

Back To battery Voltage Resistance Series Circuits – only one path for the current R1R1 R2R2 R5R5 R4R4 R3R3 I I I IA Find the current in this circuit R 1 =1Ω R 2 =2Ω R 3 =3 Ω R 4 =4Ω R 5 =5Ω V=10v R = 15 Ω I = 0.666 A Parallel circuits – current has a / I1I1 I3I3 I5I5 I7I7 I7I7 V = 10 v R 1 =1Ω R 2 =2Ω R 3 =3 Ω R 4 =4Ω Find the current through the battery and the 4 Ω resistor. The battery = 10v, R 1 = 1 Ω, etc. Battery R1R1 R2R2 R3R3 R4R4 I3I3 First find the equivalent resistance of the bottom 3 resistors./

##### Complex Circuits Some of this, some of that…. Complex Circuits The main idea in finding total resistance is to make a complex circuit into a series circuit.

a complex circuit into a series circuit. Complex Circuit A complex circuit is a circuit that has some parts like a series circuit and some parts like a parallel circuit. & Complex Circuits Consider the following circuit: 8Ω2Ω8Ω2Ω 6Ω 1Ω 9V Complex Circuits It looks a lot like a regular series circuit except for this part: 8Ω2Ω8Ω2Ω 6Ω 1Ω 9V Complex Circuits This extra loop works like a parallel circuit stuck inside the series circuit. So/

##### Chapter 9: The Complete Response of Circuits with Two Energy Storage Elements ©2001, John Wiley & Sons, Inc. Introduction To Electric Circuits, 5th Ed.

Ed Figure 9.7-1 Natural response of the underdamped parallel RLC circuit. Chapter 9: The Complete Response of Circuits with Two Energy Storage Elements ©2001, John Wiley & Sons, Inc. Introduction To Electric Circuits, 5th Ed Figure 9.8-1 Circuit for Examples 9.8-1 and 9.8-2. Chapter 9: The Complete Response of Circuits with Two Energy Storage Elements ©2001, John Wiley & Sons, Inc/

##### Course no. 9 Technical University of Cluj-Napoca Author: Prof. Radu Ciupa The Theory of Electric Circuits.

resonance condition: Q = 0 => B = 0 - the angular resonant frequency: Remark: In practice (that is having real L and C), the resonant frequencies are different for the series and parallel connections. Chapter 4. Resonance in electric circuits. Saturday, November 14, 201512 The vector diagram (phasorial representation): Remarks: a)I = I R = GU = U/R is minimum (B = 0), the current is minimum: b) I L/

#####  E1 – Electrical Fundamentals # 3 – Meters, Circuits, Loads and Switches.

are de-energized because the flow of current is interrupted. That is why switches and controls are in series with the loads they control. 120v Circuit is open No current flow  © 2005 Refrigeration Training Services - E1#3 Meters, Circuits, Loads & Switches v1.2 25 Parallel Circuits Loads are parallel to each other, not in series There is more than one path for electrons to flow Therefore:  Each load/

##### 11.6 Kirchhoff’s Laws In 1845, German physicist Gustov Kirchhoff developed two important laws when investigating circuits. These laws describe the behavior.

when investigating circuits. These laws describe the behavior of electric potential difference (voltage) and current in an electric circuit. When engineers design circuits, they use Kirchhoff’s laws to understand what will happen to voltage and current as the circuit operates./electric potential decreases (voltage drops) throughout the rest of the circuit loop. A series circuit has only one complete path, so the loads must share the voltage: A parallel circuit has more than one path, so voltage drops at each/

##### Types of Circuits Series & Parallel. Objective Students will be able to compare series and parallel circuits in order to describe how energy is transferred.

Types of Circuits Series & Parallel Objective Students will be able to compare series and parallel circuits in order to describe how energy is transferred to produce light Series Duracell Series Duracell Series Duracell Series Duracell Series Duracell Series Duracell Parallel Duracell Parallel Duracell Parallel Duracell Parallel Duracell Parallel Duracell Parallel Duracell Comparison Series CircuitParallel Circuit Definition Resistance Examples Only one path for current to flow Multiple paths for current to/

##### ELECTRICAL CIRCUIT DIAGRAMS Review of. GLOBE SWITCH BATTERY WIRE A SIMPLE ELECTRICAL CIRCUIT.

full voltage of the source, resulting in all globes burning at the same brightness regardless of the number of globes. Serial circuits are cheap and easy to construct. Parallel circuits require more effort to construct. DIFFERENCES BETWEEN SERIES & PARALLEL CIRCUITS This is called a SHORT circuit PREDICT WHAT WILL HAPPEN WHEN THE SWITCH IS ON PREDICT WHAT WILL HAPPEN WHEN THE SWITCH IS OFF This is also called/

##### Electric Currents & Circuits AP – Ch 20 & 21. Intro Stuff Circuit? – Power Supply – Resistance.

P, but different Intro Stuff Power … Intro Stuff Wiring CircuitsSeries / Parallel Parallel WHY? C // WHY? C Series Quantitative Summary Coulomb’s Law: Force between any 2 charges/Circuits Must Obey… OHM’S LAW: All Circuits Must Obey… 12V 6666 Electrical Power: From P=W/t Series Circuits Parallel Circuits Circuits w/Capacitors EXAMPLE #1 Three 12  resistors are used in two circuits; one in series and one in parallel. What is the R equivalent of each circuit? Series 12  Parallel 12  Series + Parallel/

##### More on simple battery circuits. Review A simple voltaic cell diagram shown at right What direction do the electrons flow? Do they change at all? If the.

standard at 120 V European systems are standard at 220 V Parallel circuits and current Capacity of a battery is how long it can generate/and the battery’s cathodes to each other Voltage is unchanged, capacity increases Series versus Parallel In a series connection, voltages add, but capacity is not changed In parallel connections, voltages remain the same, but capacity increases Series connection – only Voltage increases Parallel connection – only capacity increases Series versus parallel Sometimes a circuit/

##### RESISTORS IN SERIES OR IN PARALLEL CHAPTER 20.2 1.

RESISTORS IN SERIES OR IN PARALLEL CHAPTER 20.2 1 RESISTORS IN SERIES In a circuit that consists of a single bulb and a battery, the potential difference across the bulb equals the terminal voltage. 2 RESISTORS IN SERIES The total current in the circuit can be found using the equation ∆V = IR 3 RESISTORS IN SERIES What happens when a second bulb is added to such a circuit, as/

##### Electricity Circuits.

the current must have changed The dimming occurred because the house wiring had a small resistance Applications of Circuits Combined Series-Parallel Circuits As shown in the figure, this resistance was in series with the parallel circuit A circuit that includes series and parallel branches is called a combination series-parallel circuit Applications of Circuits Ammeters and Voltmeters An ammeter is a device that is used to measure the current in any branch or part of/

##### Parallel Circuits 8 Note Boxes. Quick Review The electrons that move to make electricity come mostly from the wires in the circuit, not the battery. Metals.

their electrons can move. Box #1 Introduction There are two network configurations – series and parallel. Last class we covered a series network. In this lesson we will cover the parallel circuit and all the methods and laws associated with it. Do You Remember? What did we say was the biggest DISADVANTAGE of using a series circuit? Branching Out Parallel circuits have independent paths. We call these independent paths branches. Box #2-3/

##### Any path along which electrons can flow is a circuit.

current through each is therefore 1.5 A. 35.6 Combining Resistors in a Compound Circuit What is the equivalent resistance of resistors in series? Of equal resistors in parallel? 35.7 Parallel Circuits and Overloading To prevent overloading in circuits, fuses or circuit breakers are connected in series along the supply line. 35.7 Parallel Circuits and Overloading Electric current is fed into a home by two wires called lines. About/

##### IB Physics 12 Mr. Jean November 21 st, 2013. The plan: Video clip of the day Practice question for series circuit Understanding basic electric measurement.

21 st, 2013 The plan: Video clip of the day Practice question for series circuit Understanding basic electric measurement tools Parallel circuits Series Circuit As the current goes through the circuit, the charges must USE ENERGY to get through the resistor. So each individual/individual loop currents adding to the total current It is important to understand that parallel circuits will all have some position where the current splits and comes back together. We call these JUNCTIONS. The current going IN to a/

##### Circuits Computer Lab Today.

you added two more lamps? Agenda: Review the slides and summarize the information from the slides on Series and Parallel Circuits. You will complete the online lab. Ticket out the door a quiz: A connection with only one current path is called a series connection. Series Circuit A circuit in which all current travels through each device, is called a series circuit. Parallel Circuit When a voltmeter is connected across another component, it/

##### DC Circuits.

Switch Light Bulb Fuse Bell Earth Transformer 5 principles of dc circuits Current in Series In a series circuit (i.e. no parallel circuits), the current is the same at all points of the circuit Worked Example 1 What is the reading of Ammeter X? /Parallel In a parallel circuit, there must be branches Current follows the “what goes in must come out” rule Worked Example 2 What is the value of I? 0.3 A I 0.2 A Worked Example 3 What is the value and direction of current in wire X? Potential Difference in Series/

##### Chapter 4 Components & Circuits (Part 1)

one cycle. Electrical Review 300 f λ Wavelength MHz meters 300 = f x λ f = 300 / λ λ = 300 / f Electrical Review AC and DC Waveforms Electromagnetic Spectrum Electrical Review Series and Parallel Circuits Series Circuit. Only one path for current to flow. Current is same through each device. Electrical Review Series and Parallel Circuits Parallel Circuit. Multiple paths for current to flow. Voltage is same across each device. Electrical Review Decibels Measures a ratio. Logarithmic scale/

##### Calculating Resistance in Series and Parallel Circuits

in Series and Parallel Circuits Basic Formulas for Rapid Computation of Circuit Resistance Introduction Informational lecture by Fred Baker Electronics Instructor for U.S. Navy Topics of Discussion Resistance totaling values, dependent on the circuit structure Knowing how to calculate resistance depending on circuit structure Understanding these basics can save valuable time and effort Resistance Rules for Series Circuits Series circuits are always one-for-one additive Rt = R1 + R2 + R3 + Rn Series Circuit/

##### Day 2: Parts of a Circuit Simple Circuits  An electric circuit is the path that an electric current follows  Current is flowing charges, like cars.

. Burned out light bulb Parallel Continued  So would series or parallel be better to wire a house?  Parallel because if one light is missing or not working, the other lights have alternate paths to follow and will STAY LIT! Building Circuits  Materials:  Wire  Cell  Bulbs  switch  Build a series circuit with a switch to control the light bulb  Build a parallel circuit with 2 light bulbs and a switch that controls/

##### Series-Parallel Circuits

= RT IT VA 5A 90A 18Ω Troubleshooting: Opens and Shorts in Series-Parallel Circuits In series-parallel circuits, an open or short in one part of the circuit changes the values in the entire circuit. When troubleshooting series-parallel circuits, combine the techniques used when troubleshooting individual series and parallel circuits. Troubleshooting: Opens and Shorts in Series-Parallel Circuits Effect of a Short in a Series-Parallel Circuit The total current and total power increase. . Fig. 6-13: Effect of/

##### ECE 2006 Lecture for Chapters 1 & 2 S.Norr. Fundamental Laws of Circuits Ohm’s Law: –The voltage across a resistor is directly proportional to the current.

between two or more Branches Loop – Any closed path contained within the circuit of interest Series and Parallel Two (or more) branches are in Series if they share a single node exclusively. –Branches in Series carry identical current Two (or more) branches are in Parallel if they connect to the same two nodes –Branches in Parallel have identical voltage Types of Branches Branches that are a Source of/

##### electronics fundamentals

DAVID M. BUCHLA Chapter 6 – Series and Parallel Combination Circuits Identifying series-parallel relationships Most practical circuits have combinations of series and parallel components. From Chapters 4 and 5 Components that are connected in series will share a common path. Components that are connected in parallel will be connected across the same two nodes. 1 2 Combination circuits Circuits containing both series and parallel circuits are called COMBINATION circuits You can frequently simplify analysis/

##### Electric Circuits Electricity for Refrigeration, Heating and Air Conditioning 7th Edition Chapter 3 Electric Circuits.

I = 11.11 Amps Complex Circuits Complex circuits are also know as Series-Parallel Circuits. A Series-Parallel circuit is a combination circuit containing loads in both series and parallel. Complex circuits are the most widely used circuits in industry today. Solving a Complex Circuit Start with a small simple chunk of the circuit that you know how to work with that’s either all series or all parallel. Then keep redrawing circuit at each step as it simplifies/

##### Element 3 General Class Question Pool Circuits Valid July 1, 2011 Through June 30, 2015.

parallel circuit? A.It equals the average of each branch current B.It decreases as more parallel branches are added to the circuit C.It equals the sum of the currents through each branch D.It is the sum of the reciprocal of each individual voltage drop G5C05 If three equal value resistors in parallel produce 50 ohms of resistance, and the same three resistors in series/

##### Resistors in Series or in Parallel Chapter 20 Section 2.

Resistors in Series or in Parallel Chapter 20 Section 2 Single Resistor Alone In a circuit that consist of single bulb and a battery, the potential difference across the bulb equals the terminal voltage. In a circuit that consist of single bulb and a battery, the potential difference across the bulb equals the terminal voltage. The current can be found using Ohm’s Law if the resistance/

##### SERIES – PARALLEL DC CIRCUITS INCLUDING BASIC COMBINATION CIRCUITS Jimmie Fouts Houston County Career Academy.

Law! BASIC PROCEDURE FOR DC CALCULATIONS Reduce the Complex Circuit to a Simple Equivalent  Reduce the circuit to Individual Series and Parallel Circuits  Perform Calculations on the Individual Circuits  Combine Calculations as Appropriate COMBINATION CIRCUIT EXAMPLE 10 20 A 10 ohm resistor is In series with two 20 ohm resistors Reduce to individual series and parallel circuit DETERMINE SIMPLE SERIES PARALLEL PARTS In the parallel portion of the circuit, the equivalent of two 20 ohm resistors is/