A parallel plate capacitor of capacity `5 mu F` and plate separation `6 cm` is connected to a `1V` battery and is charged. A dielectric of dielectric constant `4` and thickness `4 cm` is introduced into the capacitor. The additional charge that flows into the capacitor from the battery is.

Options

A. `2muC`
B. `3muC`
C. `5muC`
D. `10muC`

Answer

C

Explanation

`q_(1) = CV, q_(2) = C^(1)V, (c )/(C^(1)) = (d-t (t)/(K))/(d), Delta q = q_(2) - q_(1)`