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

Discussion

For the same sphere, the field at half its radius is

  • A.zero, the interior of a charged body being field free
  • B.about 56.5 V/m, half the surface value
  • C.about 113 V/m, the same as at the surface
  • D.about 226 V/m, twice the surface value

Answer: B

Inside a uniformly charged sphere the field rises linearly with radius, so at half the radius it is half the surface value. The interior is field free only for a conductor or a hollow shell, not for a solid insulating sphere of charge.

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

Post your comment

Please log in or register to post a comment.