Question Detail

PHY 102 ELECTROSTATICS Objective Question
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Question

What is an equipotential surface, as described in the document?
Options
A A surface where the electric field is parallel to the displacement.
B A surface where all points have the same electric potential.
Correct Answer
C A surface that stores all the electric potential energy.
D A surface through which no electric field lines pass.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 15-16 explains that work done is zero if moving along an arc of a circle centered on a charge, because the radius (distance from the charge) is constant. It then states, 'Such a surface is called an equipotential surface.' This implies all points on it have the same potential, and force (electric field) is perpendicular to the displacement (surface).

Hint

If no work is done moving a charge along a surface, what does that imply about the potential at all points on that surface?

Question Info

Course: PHY 102
Topic: ELECTROSTATICS
Type: Objective
Difficulty: Not specified
Question 823 of 1819
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