Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 10

EASY

12th Odisha Board

IMPORTANT

Earn 100

Electric field intensity at a point varies as $r^{- 3}$ for

50% studentsanswered this correctly

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 11

At the mid point of an electric dipole

EASY

12th Odisha Board

IMPORTANT

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

The electric potential at a point distant $r$ from an electric dipole is proportional to

EASY

12th Odisha Board

IMPORTANT

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

The potential of a charged spherical conductor of radius

r

is

10 V

. The potential at a point

\frac{r}{2}

from its centre is

EASY

12th Odisha Board

IMPORTANT

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

The electric field intensity on the surface of a charged spherical conductor of radius

r

is

E

. Its value at a point

\frac{r}{2}

from its centre is

EASY

12th Odisha Board

IMPORTANT

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

A hollow spherical conductor of radius

2 m

carries a charge of

1 nC

. The electric potential difference at the centre and surface of the spherical conductor is

EASY

12th Odisha Board

IMPORTANT

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

Proton has a mass of

1840

times that of an electron. If a proton is accelerated from rest by a potential difference of

1

volt, its kinetic energy is

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 17

A cloud is at a potential of

8 \times 10^{6}

volts relative to the ground. A charge of

40 C

is transfered in a lighting stroke between the cloud and the ground. The energy dissipated is

EASY

12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 18

The electric potential $v$ as a function of distance $x$ (in meter) is given by

$V = (2 x^{2} + 5 x - 9) volt$ .

The value of electric field at $x = 1 m$ would be