How much work would it take to bring a new charge of 4 q0 from infinity to point P?

CynthiaC

New member
Assume we are given an electric field set up
by an unknown charge distribution. U0 is
the amount of work needed to bring a point
charge of charge q0 in from infinity to a point P.
If the charge q0 is returned to infinity, how
much work would it take to bring a new charge
of 4 q0 from infinity to point P?
1. 4 U0
2.
U0
8
3.
U0
4
4.
U0
2
5. 8 U0
6. More information is needed.
7. 2 U0
8. 0
9. U0
10. The correct answer is not given.

Is it 1,2,3,4,5,6,7,8,9, or 10?
Help is appreciated!
 
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