When a dielectric slab of thickness 6cm is introduced between the plates of parallel plate condenser, it is found that the distance between the plates has to be increased by 4cm to restore the capacity to original value. The dielectric constant of the slab is
When a dielectric slab of thickness 4cm is introduced between the plates of parallel plate condenser, it is found that the distance between the plates has to be increased by 3cm to restore the capacity to it's original value. The dielectric constant of the slab is
The capacity of a parallel plate condenser with air medium is 60μF having distance of separation d . If the space between the plates is filled with two slabs each of thickness d/2 and dielectric constants 4 and 8, the effective capacity becomes :