Work and electric potential in a field

  • Thread starter rrr3221
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  • #1
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Homework Statement



if the electric field does negative work on a negative charge as the charge undergoes displacement from Position A to Position B within an electric field, then the electric potential energy

A) is negative
B) is positive
C) increases
D) decreases
E) cannot be determined

Homework Equations



u=qed, v=qu, v=ed

The Attempt at a Solution


since both q and u are negative V must be positive
 

Answers and Replies

  • #2
rl.bhat
Homework Helper
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Within an electric field the electric potential is always positive. As you change the position it either increases or decreases. If you move in the direction of the field it decreases.
 

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