SAT Subject Physics Practice Question 533: Answer and Explanation

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Question: 533

4. This question relates to the DC circuit shown below.

The values for current, voltage, and resistance in the circuit are graphed from point A through point G in the graphs directly below.

Which of the graphs shows the current from point A to point G?

A. A
B. B
C. C
D. D
E. E

Correct Answer: D


The correct answer is (D). The current in a series circuit remains the same throughout the entire circuit. Graph D shows a constant value of current from point A through point G.

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