The workdone in rotating an electric dipole of moment P in an electric field E through an angle 0 from the direction of the field is
A. pE (1 – cos θ)
B. 2pE
C. zero
D. -pE cos θ
Answer:A
The workdone in rotating an electric dipole of moment P in an electric field E through an angle 0 from the direction of the field is
A. pE (1 – cos θ) B. 2pE C. zero D. -pE cos θ