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Physics
Physics
Problem
An electric dipole of moment
p
⃗
\vec{p}
p
is lying along a uniform electric field
E
⃗
\vec{E}
E
. The work done in rotating the dipole by
90
∘
90^\circ
9
0
∘
is: (2006) a.
2
p
E
\sqrt{2}\,pE
2
pE
b.
p
E
/
2
pE/2
pE
/2
c.
2
p
E
2pE
2
pE
d.
p
E
pE
pE
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