• Support PF! Buy your school textbooks, materials and every day products Here!

Work and electric potential in a field

  • Thread starter rrr3221
  • Start date
  • #1
1
0

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
4,433
5
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.
 

Related Threads for: Work and electric potential in a field

Replies
2
Views
1K
Replies
1
Views
481
Replies
12
Views
698
Replies
2
Views
2K
Replies
11
Views
801
Top