Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 13

EASY

12th Odisha Board

IMPORTANT

Earn 100

(ii) Also calculate the electrostatic potential energy of the charge if $Q = 2 \times 10^{- 7} C$ .

Important Questions on Electric Field and Potential

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 14

Two point charges

A & B

of value

k = 9 \times 10^{9} \frac{N m^{2}}{C^{2}} Q_{1} = 4 Q = 4 \times 2 \times 10^{- 7} C = 8 \times 10^{- 7} C Q_{2} = Q = 2 \times 10^{- 7} C x = 1 m

and

+ 3 \times 10^{- 9} C

respectively are kept

6 cm

apart in air. Calculate the work done when charge

B

is moved by one

cm

towards charge

A

.

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 15

A charge of $10 μ C$ is given to a hollow metallic sphere of radius $0.1 m$ . Find the potential at

(i) The outer surface of the sphere.

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 15

A charge of $10 μ C$ is given to a hollow metallic sphere of radius $0.1 m$ . Find the potential at the centre of the sphere.

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 16

A point charge

17.7 μ C

is located at the centre of the cube of side

0.03 m

. Find the electric flux through each face of the cube.

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 1

What do you mean by electric field ? Give Faraday's concept of electric field. Find an expression electric field intensity due to a point charge.

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 2

Show that motion of a charged particle when it is projected at right angles to uniform electric field is parabolic.

HARD

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 3

Derive an expression for potential energy of an electric dipole in an electric field.

MEDIUM

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 4

Find an expression for the torque experienced by an electric dipole in a uniform electric field. What is the work done in rotating a dipole in a uniform electric field from an angle

θ_{1}

to

θ_{2}

where

θ_{1} & θ_{2}

are the angles made by dipole moment with the uniform electric field.