Two spheres carrying charges and
, separated by a distance d, experiences a force of repulsion F. When a charge of
is given to both the sphere and kept at the same distance as before, the new force of repulsion is
Text Solution
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Let us call spheres as A and B.
According to Coulomb's law, the force of repulsion between A and B separated by a distance d is
When a charge of is given to both the spheres, then charge on
and on
Again by Coulomb's law, the new force of repulsion between A and B separated by the same distance d is
Dividing eqn. (ii) by eqn. (i), we get
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