SAT Subject Physics Practice Question 437: Answer and Explanation

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Question: 437


What is the voltage change between point B and point C?

A. 1 V
B. 2 V
C. 3 V
D. 9 V
E. 18 V

Correct Answer: B


The correct answer is (B). Use Ohm's Law to solve the problem.
V = IR
(1A)(2Ω) = 2V

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