SAT Subject Physics Practice Question 613: Answer and Explanation

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Question: 613

9. This question relates to particles placed in the electric field shown below.

A particle is placed into the electric field (E),which has a magnetic field superimposed on it as shown. Where in the electric field will the three particles named below be located after a short period of time if they start at Point E?

The particle is an electron.

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

Correct Answer: A

Explanation:

The correct answer is (A). The electron moves toward the positive plate in the electric field. It does not enter the magnetic field, so the magnetic field has no affect on it.

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