AP Physics 2 Algebra Based : Unit – 4 – Electric Circuits Practice Test
AP Physics 2 Algebra Based : Unit – 4 – Electric Circuits Practice Test
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Question 1 of 19
1. Question
Professor Sharon rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
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Question 2 of 19
2. Question
You create a cylinder of an unknown material that has a diameter of 2cm, and a height of 1cm. You attach the electrodes to the faces of the cylinder and find the sample has a resistance of 25Ω. What is the resistivity of the material?
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Question 3 of 19
3. Question
The figure shows a neutral glass rod and a positively charged metal sphere. Which of the following best describes the movement of charges as this glass rod touches the sphere
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Question 4 of 19
4. Question
You have 3 capacitors in series. Their capacitances are 4μF, 3μF, and 2μF. What is the total capacitance of the system?
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Question 5 of 19
5. Question
A cloth has a positive charge and can attract some paper scraps when held near them, what kind of charge can the paper scraps NOT have?
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Question 6 of 19
6. Question
In this parallelplate capacitor, the distance d between the plates is 3cm, the area of each plate is 15cm2, and the voltage across them is 5V. Calculate the capacitance.
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Question 7 of 19
7. Question
A battery has an emf ε = 12 V and an internal resistance r = 2.0 Ω, as shown in the figure below. When a 3.0Ω cable is connected across the battery terminals a and b, the rate at which chemical energy in the battery is depleted is closest to?
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Question 8 of 19
8. Question
The length of a certain conductor of resistance 100 is doubled and its crosssectional area is halved. Its new resistance is
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Question 9 of 19
9. Question
Find the total capacitance of the combination of capacitors shown in the figure below.
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Question 10 of 19
10. Question
A battery with an emf of 15 V and an internal resistance of 3 ohms is connected to a circuit with a resistor be varied from ohms to 6 ohms. If the resistor is increased from 3 ohms to 6 ohms, what happens the terminal voltage across the battery as the resistor increases?
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Question 11 of 19
11. Question
Suppose a circuit consists of a battery connected to four resistors, all of which are connected in parallel. If a fifth resistor is added in parallel to this circuit, how will the current in the other four resistors change?
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Question 12 of 19
12. Question
Which resistor has the greatest current going through it? Assume that all the resistors are equal.
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Question 13 of 19
13. Question
The equivalent resistance in this circuit is
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Question 14 of 19
14. Question
A 130 mF capacitor and a 150 mF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is?
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Question 15 of 19
15. Question
The light bulbs in the circuit below are identical with the same resistance R. Which circuit produces more light?
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Question 16 of 19
16. Question
For the circuit shown, the resistances are R_{ 1} > R _{2} > R_{ 3}. What is true about the current through each resistor?
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Question 17 of 19
17. Question
Analysis of a circuit produces two loop equations: 10x + 30y = 7 and 40x – 20y = 0 What are the currents x and y?
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Question 18 of 19
18. Question
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Question 19 of 19
19. Question
Kirchhoff’s junction rule is a statement of ______
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