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Pew Pow Think about the differences between a series circuit and a parallel circuit and explain which method is used to wire your house. Show a formula.

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Presentation on theme: "Pew Pow Think about the differences between a series circuit and a parallel circuit and explain which method is used to wire your house. Show a formula."— Presentation transcript:

1 Pew Pow Think about the differences between a series circuit and a parallel circuit and explain which method is used to wire your house. Show a formula and give a good reason why you believe this to be true.

2 Objectives Using our knowledge of Ohm’s Law and the Power Law, practice with Series Circuits ! Now apply our physics understanding to solve parallel circuits for things like voltage, current and resistance.

3 Homework: Castle Learning – Review TEST !! - Tomorrow (Thursday!) (Friday if delay or snow day) - on all of Current Electricity (Packet)

4 Finish Parallel Worksheet Homework Review Go through packet examples. – Resistance – Resistivity – Current – Ohm’s Law – Power Law – Series and Parallel Circuits Then review questions.

5 Try this: (show all units!) The current in a wire is 8.0 amperes. The time required for 2.5 × 10 19 electrons to pass a certain point in the wire is…

6 Show all work An electric dryer consumes 6.0 × 10 6 joules of electrical energy when operating at 220 volts for 1.8 × 10 3 seconds. During operation, the dryer draws a current of…

7 The diagram below shows currents in a segment of an electric circuit. What is the reading of ammeter A?

8 The following resistors are placed in parallel: 10 ohms, 15 ohms, 6 ohms and 20 ohms. Draw the circuit and show how you would measure the current through the 15 ohm resistor. These are connected to a 120V power source. What is the equivalent resistance?

9 Recall series circuit – a circuit in which two or more elements are connected end-to-end so that a single loop of current is formed.

10 Definitions parallel circuit – a circuit in which two or more elements are connected so that each has its own current loop.

11 Worksheet

12 Draw a series circuit out of a 50 ohm resistor and a 100 ohm resistor and a 200 ohm resistor and a 20V battery. What is the current through the 100 ohm resistor? What is the voltage drop across the 200 ohm resistor? Now do the same thing but make a parallel circuit.


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