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A parallel plate air capacitor is connec...

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

A

`Q gt Q_(0)`

B

`V gt V_(0)`

C

`E gtE_(0)`

D

`U lt U_(0)`

Text Solution

Verified by Experts

The correct Answer is:
A
(A) `Q_(0) = CV & Q = (KC)V rArr Q gt Q_(0)`
(B) `V = V_(0)`
(C ) `E = E_(0)`
(D) `U_(0) = (1)/(2) CV^(2) &U = (1)/(2)(KC)V^(2)rArr U gt U_(0)`
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