An electric dipole of moment 'p' is placed in an electric field of intensity 'E'. The dipole acquires a position such that the axis of the dipole makes an angle with the direction of the field. Assuming that the potential energy of the dipole to be zero when = 90°, the torque and the potential energy of the dipole will respectively be: Option 1) p E sin, - p E cos Option 2) p E sin, - 2 p E cos Option 3) p E sin, - 2 p E cos Option 4) p E cos, - p E cos

As we discussed in

Torque,

Potential energy

Option 1)

p E sin, - p E cos

This option is correct.

Option 2)

p E sin, - 2 p E cos

This option is incorrect.

Option 3)

p E sin, - 2 p E cos

This option is incorrect.

Option 4)

p E cos, - p E cos

This option is incorrect.