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

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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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Important Questions on Electrostatics

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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:

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 150

An electric dipole is placed along the North-South direction in a sphere filled with water: Which statement is true?

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 151

At the equator of electric dipole, angle between electric dipole moment and electric field is:

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 152

The potential of dipole at its axial position is proportional to distance

r

as:

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 153

An electric dipole has the magnitude of its charge as

q

and its dipole moment is

p

. It is placed in a uniform electric field

E

. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 154

Three point charges $+ q, - 2 q$ and $+ q$ are placed at points

$(x = 0, y = a, z = 0), (x = 0, y = 0, z = 0)$ and $(x = a, y = 0, z = 0)$ respectively. The magnitude and direction of the electric dipole moment vector of this charge assembly are