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Two charged spheres when placed in air a...

Two charged spheres when placed in air attract with a force F. Keeping the distance between the charges constant, the spheres are immersed in a liquid of relative permittivity K. Then the spheres will

A

attract with a force KF.

B

repel with a force KF.

C

attract with a force `F//K`.

D

repel with a force `F//K`.

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