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Force between the two point charges kept...

Force between the two point charges kept a distance of 10 cm is 80 N in air If these charges are kept at the same distance in water, how does the force between them change ?

Text Solution

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F = 80N = Force between the two charges in vacuum .
F. = Force between the same two charges in water
K = 80 = Dielectric constant of water
We know `F. = F/K`
`F. = 80/80 = 1N`
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