SAT Subject Physics Practice Question 464: Answer and Explanation

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Question: 464

10. This question relates to the electric fields shown in the diagrams below, which represent two charged objects near each other in space.

Which drawing represents two like point charges?

A. Drawing I
B. Drawing II
C. Drawing III
D. Drawing IV
E. Drawing V

Correct Answer: B


The correct answer is (B). The field shown at A is a magnetic field around a current-carrying device. The field at C is a point charge near a charged plate. The field shown by the letter D is a parallel plate field. The field in E is that of attraction between point changes. The field shown at B shows repulsion between the field lines. The repulsive effect is due to a pair of like charged particles.

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