A dielectric slab of length 1, width b, thickness d and dielectric constant K fills the space inside a parallel plate capacitor. At t = 0, the slab begins to be pulled out slowly with speed v. At time t, the capacity of the capacitor is

A dielectric slab of length 1, width b, thickness d and dielectric con

1.	A dielectric slab of length 1, width b, thickness d and dielectric constant K fills the space inside a parallel plate capacitor. At t = 0, the slab begins to be pulled out slowly with speed v. At time t, the capacity of the capacitor is
Answer» `(epsi_0 b) /( d )[ Kl - (K -1) v t]` `(epsi_0 b )/( b ) [ Kl +K + vt]` `(epsi_0 b )/(b ) [(kl +L ) vt ]` `( epsi_0b )/(d)[ l+ (k-1) vt ]` ANSWER :A

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A dielectric slab of length 1, width b, thickness d and dielectric constant K fills the space inside a parallel plate capacitor. At t = 0, the slab begins to be pulled out slowly with speed v. At time t, the capacity of the capacitor is

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