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The force acting between two point charg...

The force acting between two point charges `q_(1)` and `q_(2)` kept at some distance apart in air is attractive or repulsive, if
`(i) q_(1)q_(2) gt 0" " (ii) q_(1)q_(2) lt 0`

Text Solution

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(i) `q_(1)q_(2) gt 0` means either both charges are positive or negative. So, due to same nature, there is a repulsive force between them.
(ii) `q_(1)q_(2) lt 0` means one charge is positive and other charge is negative. So, due to opposite polarity, there is an attractive force between them.
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