at what distance two charge should be placed in a medium of dielectric constant 64 shame as when kept at distance 400 m in air
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A
4
F
The force between the 2 charged particles is inversely proportional to the permittivity.
Therefore if the permittivity increases by 4 times, then obviously the force decreases by 4 times.
Therefore the new force is given by,
4
F
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