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# v=kQ/r????????????????????

what is r?

Update:

and how do i get it.

Update 2:

How does one get r?

### 3 Answers

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- Anonymous9 years agoFavorite Answer
description of r:

look at the figure where potential is required at point P located at some distance r from a point charge +Q

(+Q)----------------------. (P)

.... <-----------r--------->

r & Q are given

k = 8.987 X 10^9 N-m^2/C^2

substitute in V = kQ/r we get potential V at point P

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- Gothic MermaidLv 49 years ago
Radius according to my science book

Source(s): Earth science Glencoe Book P.S it majors in earth science but has physics and all the other stuff- Login to reply the answers

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