Machine-translated by Google. Questions are authored in English.
Top

Discussion

Charge placed inside a cavity within a conductor induces on the cavity wall

  • A.an equal charge of the same sign as that placed inside
  • B.a charge of half the magnitude
  • C.an equal and opposite charge
  • D.no charge

Answer: C

A Gaussian surface drawn wholly within the metal must enclose zero net charge because the field there is zero, and that forces the induced wall charge to cancel what is inside. An equal charge of the original sign then appears on the outer surface.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.