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Total electric force on an electric dipo...

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.

Text Solution

Verified by Experts

The correct Answer is:
B
Electric field of a point charge is non-uniform hence net force can never 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

  • 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

  • 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

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    What is the net force on a dipole placed in a uniform electric field?

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