AP Physics 1 Question 416: Answer and Explanation
Test Information
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Question: 416
4. If the voltage drop across a 3 Ω resistor is 2 V, how long will it take for the resistor to dissipate 100 J of energy?
- A. 75 s
- B. 100 s
- C. 125 s
- D. 150 s
Correct Answer: A
Explanation:
A
The equation 
gives
The amount of time it takes for the resistor to dissipate 100 J of energy is equal to 
.