Question

When a dielectric slab of thickness is introduced between the plates of parallel plate condenser, it is found that the distance between the plates has to be increased by to restore the capacity to it's original value. The dielectric constant of the slab is

A

B


C


D


Medium

Solution

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Correct option is
B


Distance is increased.

We know
When dielectric is added

given distance has to be increased by 3 cm to restore original value.



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