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Grade: 12
        The force of attraction between two point charges at a distance r apart is F. What should be the distance apart in the same medium so that the force becomes F/3?what if force becomes 3F
one year ago

Answers : (2)

Adarsh
763 Points
							
If the distance between them is increased by 3 times the initial length then force will be F/3.
if the distance is decreased by 1/3 times the initial length then force will be 3F.
Thanks and Regards 
Adarsh
one year ago
Khimraj
3008 Points
							
Force of attraction between two charges is inversely proportional to square of distance. So
F1/F2 = r22/r12
3 = r22/r2
So r2 = r*(3)1/2
 Similarly if force become 3F then
r2 = r*(1/3)1/2
Hope it clears.
 
one year ago
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