Question

When an dielectric slab is gradually inserted between the plates of an isolated parallel plate charged capacitors?

Answer 1

Explanation:

When an dielectric insert between isolated plate then the capacitance increase by k time the initial capacitance

Thank you

Answer 2

ANSWER

The energy of the system is decreasing the force should be such that it do the work. If the work is done by the force the energy will convert into work. When a dielectric slab inseted it attract by the plate of the capacitor as the work is done the displacement is in direction of force the energy is converted into works thats why the energy of the capacitor reduce.

So force must be attracting.

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