MCAT Physics Question 71: Answer and Explanation

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Test Information

Question: 71

11. Which of the following accurately depicts the field lines created by a proton that is moving toward the right on this page?

  • A.
  • B.
  • C.
  • D.

Correct Answer: D

Explanation:

You should know that the field lines for a positively charged particle will always point away from the particle in a radial pattern, regardless of the direction in which the particle is moving. This is because field lines point in the direction a positive test charge would move in that field (that is, the direction that a force would be exerted on a positive test charge in that field).

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