(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two point charges are separated by a distance r. If the separation is reduced by a factor of 3/2, by what factor does the electric potential between them change?

A. 3/2

B. 2/3

C. 9/4

D. 4/9

E. Sqrt(3/2)

2. Relevant equations

3. The attempt at a solution

Honestly I couldn't think of any formula involving separation of 2 point charges and the electric potential between them. Reading a little more on electric potential, I find that U=Ed but then I'm not sure whether the strength of the electric field remain constant when we change the distance between two point charges.

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# Homework Help: Electric potential between two point charges

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