NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 29

HARD

12th ICSE

IMPORTANT

Earn 100

An electric dipole of length $2 cm$ is placed with its axis making an angle of $60^{\circ}$ to a uniform electric field of $10^{5} N ‐ C^{- 1}$ . If it experiences a torque of $8 \sqrt{3} N ‐ m,$ calculate magnitude of the charge on the dipole.

Important Questions on Electric Potential

EASY

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 29

An electric dipole of length

2 cm

is placed with its axis making an angle of

60 °

to a uniform electric field of

10^{5} N - C^{- 1}

. If it experiences a torque of

8 \sqrt{3} N - m

, calculate potential energy of the dipole.

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 30

Two point charges of

+ 3 μC

and

- 3 μC

are at a distance

3 \times 10^{- 3} m

apart from each other. Calculate electric potential at a distance of

0.6 m

from the dipole in broad-side-on position.

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 30

Two point charges of

+ 3 μC

and

- 3 μC

are at a distance

3 \times 10^{- 3} m

apart from each other. Calculate the electric potential at distance of 0.6m from the dipole in broad-side on position and at the same point after rotating the dipole through

90 °

.

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 31

Compute the electric potential at the surface of the nucleus of a silver atom. The radius of the nucleus is

3.4 \times 10^{- 14} m

and the atomic number of silver is

47

.

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 32

A hollow metallic sphere of

0.1 m

radius is given a charge of

12 μC

. Calculate the potential at the surface and at the centre of the sphere.

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 33

A hollow spherical conductor of radius

12 cm

12 cm is given a charge of

2.4 \times 10^{- 9} C

. Calculate the potential on the surface of the conductor.

MEDIUM

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 33

A hollow spherical conductor of radius

12 cm

is given a charge of

2.4 \times 10^{- 9} C

. Calculate the intensity of electric field in air at a distance of

4 m

from the centre of the sphere.

HARD

12th ICSE

IMPORTANT

NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 3 - Electric Potential>QUESTIONS>Q 34

The electric potential due to a hollow, charged metallic sphere of radius

12 cm

at a point distant

6.0 cm

from its centre is

100 V

Calculate the potential at the surface of the sphere and at a point

20 cm

from the centre.