Solve

Guides

0

You visited us 0 times! Enjoying our articles? Unlock Full Access!

New Capacitance in Dielectric

Question

A parallel plate air capacitor has capacity $^{'} C^{'}$ farad, potential $^{'} V^{'}$ volt and energy $^{'} E^{'}$ joule. When the gap between the plates is completely filled with dielectric.
Both $V$ and $E$ increase
Both $V$ and $E$ decrease
$V$ increases, $E$ decreases
$V$ decreases, $E$ increases

A

Both

V

and

E

increase

B

V

decreases,

E

increases

C

Both

V

and

E

decrease

D

V

increases,

E

decreases

Open in App

Solution

Verified by Toppr

A parallel- plate capacitor with a dielectric. The electric field is reduced between the plates because the dielectric material is polarized, producing an opposing field. When there is a dielectric, the potential is also reduced because potential is inversely proportional to dielectric $V^{'} = \frac{V}{K}$ where $K$ is dielectric constant.

Was this answer helpful?

3

Similar Questions

Q1

A parallel plate air capacitor has capacity

^{'} C^{'}

farad, potential

^{'} V^{'}

volt and energy

^{'} E^{'}

joule. When the gap between the plates is completely filled with dielectric.

View Solution

Q2

Assertion :A parallel plate capacitor is first charged and then distance between the plates is increased. In this process electric field between the plates remains the same, while potential difference gets decreased. Reason:

E = \frac{q}{A ε_{0}}

and

V = \frac{q}{A d ε_{0}}

. Since, q remains same, E will remain same while V will decrease.

View Solution

Q3

E = -dV/dr, here the negative sign signifies that

View Solution

Q4

A parallel plate air capacitor is charged to a potential difference of V volt. After disconnecting the charging battery, the distance between the plates of the capacitor is increased using an insulating handle. As a result, the potential difference between the plates

View Solution

Q5

Let p and E denote the linear momentum and energy of a photon. If the wavelength is decreased,
(a) both p and E increase
(b) p increases and E decreases
(c) p decreases and E increases
(d) both p and E decrease

View Solution