An electric dipole of moment \(\vec { P } \) is lying along a uniform electric field \(\vec { E } \) . The workdone in rotating the dipole by 90° is
A. \(\frac { pE }{ 2 }\)
B. 2pE
C. pE
D. √2pE
Answer:C
An electric dipole of moment \(\vec { P } \) is lying along a uniform electric field \(\vec { E } \) . The workdone in rotating the dipole by 90° is
A. \(\frac { pE }{ 2 }\) B. 2pE C. pE D. √2pE