Electricity. Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in.

Slides:

Advertisements

Similar presentations

Ch Electricity II. Electric Current (p ) Circuit Potential Difference Current Resistance Ohms Law.

Advertisements

Physical Science 7.2 Electric Current.

Electric Current Section 2.

Cells have positive and negative electrodes.

 Rate (how fast) at which charges pass a given point  Measured in Amperes or amps  Current (I)  Electrons moving in a wire make up current and provide.

CURRENTS AND OHM’S LAW. What?  Electricity – flow of electric current  Electric current – the movement of an electrical charge.  In most cases, we.

Resistance in Electrical Systems

Electricity. whether two charges attract or repel depends on whether they have the same or opposite sign unit of measurement for charge is the coulomb.

Table of Contents Electricity.

4.3 Notes Resistance in Electrical Systems. Properties of Materials Conductors Have a large ability to conduct electric current They contain many free.

CHAPTER 7 ELECTRICITY BINGO. A circuit in which current has more than one path is called a _________________ circuit.

Electric Current 6.2.

Section 2: Electric Current

Warmup: Concept: OHM’s Law. Electrical current is a measure of the rate at which electrical charge moves in a circuit. Electrical current is measured.

 Electricity is caused by the flow (or net movement) of Electrons  Electric Current – the rate that positive charges flow in a circuit › Actually a.

4.2.3B Electrical Power What About Watts?. Power Law Moving electrons (current) requires ENERGY How much energy gets used depends on: Strength of push.

Ohm’s Law Conductor A conductor is a material that current can pass through easily, like metals.

Electricity 7.2 Electric Current.

Electric Current. Electric Potential Electrons in a circuit have potential energy –The energy is related to the force exerted by an electric field –The.

Electric Current Chapter 7 section 2.

Electricity Basics of electricity. Electricity Atoms – The smallest unit of each element Electrons – negatively charged particles in atoms Ions – charged.

Circuits : Series vs Parallel

Ch Electricity II. Electric Current  Cell and Battery  Potential Difference  Current  Resistance  Ohm’s Law.

 Electric Current- net movement of electric charges in a single direction ◦ Example- powering electronics.

Conductors and insulators.

Electric Current. Ohm’s Law

Electrical Current and Circuits How Electricity Gets To Where It Is Going.

Ch Electricity II. Electric Current  Cell and Battery  Potential Difference  Current  Resistance  Ohm’s Law.

Electrical Current. Detecting electrical charge Electroscope: an instrument to detect electrical charge.

a path along which electrons flow must have no breaks in the path to work 2 types: –closed (no breaks) –open (break, causes the device to shut off - switch)

Electric Current How is water like electricity?. What is current? Water tends to flow from high places to low places, due to it’s potential energy or.

Electric Current. Electric Current (I) The net movement of electric charges in a single direction ▫Unit - amperes  Symbol – A  Measurement instrument.

Ohm’s Law Notes JAN 7. Vocabulary current : how quickly the electrons are flowing through the circuit; units: amperes (A) voltage : the electric potential.

Measuring Electricity. Electric Potential – the electrical energy that an electron possesses. Electric current is a measure of the rate at which the electric.

Electricity. An electric current is a flow of ELECTRONS flowing through wires and electronic components.

Electric Charges Two types of electric charges: – Positive = protons – Negative = electrons – If # of electrons = # of protons, neutral – More electrons,

Electric Current Electric current – The net movement of electric charges in a single direction through a wire or conductor. Voltage difference – The force.

Chapter 7 Section 2.

Lecture 52 – Lecture 53 Electric Current Ozgur Unal

Physical Science 7.2 Electric Current.

Measurements in Electric Circuits

Electricity 7-2 Electric Current.

Electric Current Introduction

Electricity - Current.

Charge on the Move Ch. 7 section 2

7-2: Electric Current.

Ch Electricity II. Electric Current (p ) Circuit

Ch Electricity II. Electric Current Circuit Potential Difference

Measurements in Electric Circuits

Current Electric Current: (I) the net movement of electric charge in a single direction. Measured in Amperes (Amps) How do the e- move? They travel like.

Chapter 7 section 2 Electric Current

Ch 17 Electrical Energy and Current

AP Physics L07_current Effects of moving charges

Effects of moving charges

Electricity Electric Current.

ELECTRICITY: Electric Current

Electric Current 6.2.

Electric Current.

Electrical Current & Circuits

Electrical Current &Circuits

Ch Electricity II. Electric Current (p ) Circuit

Modified by Mr. Wanninkhof

Electricity (Lesson 2).

Electricity II. Electric Current Circuit Potential Difference Current

Ohm’s Law & Circuits Chapter 7.2 & 7.3.

Voltage Difference The difference in electrical potential between two places. Unit of measure = V (volts) Voltage causes current to flow through an electric.

Announcement Ohm’s law video is due at midnight Makeup lab today

Electric Current Chapter 34.

Electric Current 13.2.

Presentation transcript:

Electricity

Electric Current The net movement of electric charges in a single direction Electrons in a material (metal wire) are in constant motion in all directions = No Net Movement of electrons in one direction In an electric current the electrons drift in the direction of the flow

Electric Current Measured in Amperes 1 Ampere = 6,250 million electrons flowing past a point every second

Voltage Difference Electric Charge flows from higher voltage to lower voltage Measured in Volts

Resistance The tendency for a material to oppose the flow of electrons Changes electrical energy into thermal energy or light Measured in Ohms (Ω)

Ohm’s Law I  Current (amperes) V  Voltage Difference (volts) R  Resistance (ohms) (89-90)