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

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12th Odisha Board

IMPORTANT

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

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Important Questions on Electric Field and Potential

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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

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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

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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

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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

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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

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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

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12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 19

Charges of

\frac{10}{3} \times 10^{- 9}

coulomb are placed at each of the four corner of a square of side

8 c m

each. The potential at the intersection of its two diagonals is

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12th Odisha Board

IMPORTANT

Bureau's Higher Secondary Physics Class 12>Chapter 2 - Electric Field and Potential>MODEL QUESTIONS>Q 20

When a charges of

3

coulomb is placed in a uniform electric field it experiences a force of

3000 N

. The potential difference between two points separated by a distance of

1 c m

within this field is