AP Physics 1 Question 271: Answer and Explanation

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Question: 271

7. A charge of -3Q is transferred to a solid metal sphere of radius r. Where will this excess charge reside?

  • A. -Q at the center, and -2Q on the outer surface
  • B. -3Q at the center
  • C. -3Q on the outer surface
  • D. -Q at the center, -Q in a ring of radius r, and -Q on the outer surface

Correct Answer: C

Explanation:

C

All excess electric charge on a conductor resides on the outer surface.