Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 141

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The electric potential at a point due to an electric dipole will be -

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Important Questions on Electrostatics

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 142

The ratio of magnitudes of the electric field due to an electric dipole on the axis and the equatorial line at equal distances will be

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 143

An electric dipole is made up of two equal and opposite charges of

2 \times 10^{- 8}

coulomb at a distance of

3 cm .

This is kept in an electric field of

2 \times 10^{5} N C^{- 1}

then the maximum torque acting on the dipole-

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 144

The distance between two singly ionised atoms is

1 Å .

If the charge on both ions is equal and opposite then the dipole moment in

C m

is -

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 145

The electric potential in volt at a distance of

0.01 m

on the equatorial line of an electric dipole of dipole moment

p

is -

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 146

The electric potential in volt due to an electric dipole of dipole moment

2 \times 10^{- 8} C m

at a distance of

3 m

on a line making an angle of

60 °

with the axis of the dipole is -

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 147

A dipole of electric dipole moment

P

is placed in a uniform electric field of strength

E

. If

θ

is the angle between positive directions of

P and E

, then the potential energy of the electric dipole is largest when

θ

is

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 148

Potential due to an electric dipole at some point is maximum or minimum when axis of dipole and line joining point and dipole are at angles respectively:

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 149

Electric field on the axis of electric dipole, at a distance of

r

from its centre is

E .

If dipole is rotated: through

90 °;

then electric field intensity at the same point will be: