A parallel plate air capacitor is connected to a battery. The quantities charge, voltage, electric field and energy associated with this capacitor are given by `Q_0` , `V_0`, `E_0` and `U_0` respectively. A dielectric slab is now introduced to fill the space between the plates with battery still in connection. The corresponding quantities now given by Q, V, E and U are related to the previous one as

Options

A. `Q gt Q_(0)`
B. `V gt V_(0)`
C. `E gt E_(0)`
D. `U gt U_(0)`

Answer

A, D

Explanation

As battery is not disconnected form the capacitor,
`V=V_(0),E=E_(0),C=KC_(0),Q=KQ_(0),U=KQ_(0)`.