Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>EXERCISE 2.7>Q 79

EASY

JEE Main/Advance

IMPORTANT

Earn 100

A capacitor is charged with a di-electric slab in the space between the plates of capacitor. The battery is disconnected and the di-electric slab is pulled out of the space. Then the force of capacitor upon slab

50% studentsanswered this correctly

Important Questions on Electrostatic Potential and Capacitance

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 1

Find the electrostatic potential energy of the system shown in the figure.

Question Image

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 2

Two charges

q

and

- q

are placed at

(a, 0)

and

(- a, 0)

on the

x -

axis. Another charge

2 q

is taken from

(0, 0)

to

(0, a)

, then the work done to do so

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 3

In moving a unit positively charged body from point

A

to point

B

, external work done is

40 J

and body acquires a kinetic energy of

20 J .

The potential difference,

V_{B} - V_{A}

, is

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 4

A charge of

5 nC

is uniformly distributed on a ring of radius

4 cm .

Find the potential at the axis at a distance of

3 cm

from the centre.

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 5

In which of the following case, potential at point

O

is not zero?

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 6

In any region, if electric field is define as

\vec{E} = (\hat{i} + 2 \hat{j} + \hat{k}) V / m

, then the potential difference between two points

A (0, 0, 0)

and

B (2, 3, 4)

in that region, is

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 7

If the potential function is define as

V = (- 3 x + 4 y + 12 z) V,

then magnitude of electric field

E (x, y, z)

is

EASY

JEE Main/Advance

IMPORTANT

Gamma Question Bank for Engineering Physics>Chapter 16 - Electrostatic Potential and Capacitance>Assignment Set-2>Q 8

From the following graph, find the value of $| \vec{E} |$ at $r = 3.5 m$

Question Image