Question

An electric dipole of moment p is lying along a r uniform electric field E . The work done in rotating the dipole by 90º is:-

Answer 1

0 as the angle between force and displacement is90degree

Answer 2

Answer:

Explanation:Workdone=ΔpE

pE=−

p

​

E

pE

f

​

=0

pE

i

​

=−pE

ΔpE=pE