An electric dipole of moment p is placed in a position of stable equilibrium in a uniform electric field of - Physics - Waves

Question

An electric dipole of moment p is placed in a position of stable
equilibrium in a uniform electric field of intensity E What amount
of work will be done if the dipole is rotated through an angle
theta from its initial position?

Pintu B. · Accepted Answer

Dear Student,

Work Done by an electric dipole

U=-p→
E→stable equilibrium is the state where the dipole moment is parallel to the electric fieldi
e θ=0or P
E initially=-pEcos0 or U=-pE ( min )When its rotated by angle θU=-pEcosθThus work done= Change in P
Eor, W=-pEcosθ-1

Regards

An electric dipole of moment p is placed in a position of stable equilibrium in a uniform electric field of intensity E. What amount of work will be done if the dipole is rotated through an angle theta from its initial position?