AP PHYSICS C: ELECTRIC CIRCUITS Practice Test
AP PHYSICS C: ELECTRIC CIRCUITS Practice Test
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Question 1 of 19
1. Question
Given: R1=5Ω ,R2=7Ω What is the total resistance of the circuit above?
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Question 2 of 19
2. Question
You have 3 resistors in parallel with each other. What can you say for certain about the total resistance of the circuit?
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Question 3 of 19
3. Question
You have two resistors in series, with the pair being in parallel with another resistor. What can be said for certain about the total resistance?
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Question 4 of 19
4. Question
A circuit has two identical resistors in series. The resistors are then changed so they are in parallel. How will the current of the circuit change?
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Question 5 of 19
5. Question
A 10 Ω, 15 Ω, and 40 Ω resistor are connected as shown to a 48-Volt emf source with internal resistamce r=1 Ω. What is the terminal voltage of the emf source?
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Question 6 of 19
6. Question
Two 10 Ω resistors and a 40 Ω resistor are connected as shown to a 100-Volt emf source with internal resistance r=2 Ω. How much Power is dissipated by the 40 Ω resistor?
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Question 7 of 19
7. Question
Which is the right form of Ohm’s Law?
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Question 8 of 19
8. Question
Resistors are one of the most important basic components of a circuit. With very few exceptions, all circuits have at least one kind of resistor component. An ammeter is a device that measures current flowing through a circuit. Ammeters are always connected to a circuit in series.
Which of the following accurately explains why ammeters must be connected in series within a circuit, and never in parallel?CorrectIncorrect -
Question 9 of 19
9. Question
Three resistors and a battery form the following circuit. Calculate the equivalent resistance if the resistors have the following values. R1=40Ω, R2=25Ω, R3=38Ω
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Question 10 of 19
10. Question
A lamp has a 60W bulb. If the house wiring provides 110V to light up that bulb, how much current does the bulb draw?
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Question 11 of 19
11. Question
A straight copper wire has a fixed voltage applied across its length. Which of the following changes would increase the power dissipated by this wire?
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Question 12 of 19
12. Question
A battery is measured to have a potential of 5V. When connected to a wire with no resistors or other components, the voltage measured is 4.9V. If the current through the wire is measured to be 2A, how much thermal energy is being lost per second as soon as the wire is connected to the battery?
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Question 13 of 19
13. Question
Three capacitors are connected to a battery as shown and allowed to charge fully. What is the equivalent capacitance of the three capacitors?
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Question 14 of 19
14. Question
Given R 1 =15Ω, R 2 =20Ω, R 3 =20Ω, V=50V What is the current delivered to the curcuit by the battery?
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Question 15 of 19
15. Question
A simple circuit contains two 12Ω resistors in parallel, connected to a 20V source. What power is being provided by the source to the circuit?
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Question 16 of 19
16. Question
A battery is measured to have a potential of 5V. When connected to a wire with no resistors or other components, the voltage measured is 4.9V. Why was the potential of the battery measured differently when the wire was connected?
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Question 17 of 19
17. Question
A simple circuit consists of a 2 MΩ resistor that’s connected to a 9V battery. How much power is dissipated by the resistor?
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Question 18 of 19
18. Question
A cicuit with a voltage source of 40V has a 15Ω resistor and a 5Ω resistor in series, followed by two 5Ω resistors in parallel. After the parallel branches rejoin, there is a 10Ω resistor before the circuit is closed at the voltage source.What is the current supplied by the source?
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Question 19 of 19
19. Question
It is an electromotive force or potential difference that will cause current to flow.
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