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An electric dipole is kept in the electr...

An electric dipole is kept in the electric field produced by a point charge

A

dipole will experience a force

B

dipole will experience a torque

C

it is impossible to find a path ( not closed) in the field on which work required to move the dipole is zero.

D

dipole can be in stable equilibrium

Text Solution

Verified by Experts

The correct Answer is:
A

In all orientations, dipole experience force but does not experience torque if dipole has its dipole moment along or opposite to ELOF.
Dipole can never be in stable equilibrium and work done in moving dipole along an EPS of point charge Q will be zero.
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Knowledge Check

  • An electric dipole is placed in an electric field generated by a point charge

    A
    The net electric force on the dipole must be zero
    B
    The net electric force on the dipole may be zero
    C
    The torque on the dipole due to the field must be zero
    D
    The torque on the dipole due to the field may be zero

  • Total electric force on an electric dipole placed in an electric field of a point charge is :

    A
    always zero
    B
    never zero
    C
    zero when mid point of dipole coincides with the point charge
    D
    zero when dipole axis is along any electric line of force.

  • For an electric dipole potential & electric field

    A
    can have same magnitude for a point at a distance less than 2 meter
    B
    can have same magnitude fo a point at distacnes greater than 2 meter
    C
    can never be equal
    D
    can never be predicted

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