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Physics
Physics
Problem
An electric field of
1000
V/m
1000 \text{ V/m}
1000
V/m
is applied to an electric dipole at angle of
45
∘
45^\circ
4
5
∘
. The value of electric dipole moment is
10
−
29
C.m
10^{-29} \text{ C.m}
1
0
−
29
C.m
. What is the potential energy of the electric dipole? a.
−
20
×
10
−
18
J
-20 \times 10^{-18} \text{ J}
−
20
×
1
0
−
18
J
b.
−
7
×
10
−
27
J
-7 \times 10^{-27} \text{ J}
−
7
×
1
0
−
27
J
c.
−
10
×
10
−
29
J
-10 \times 10^{-29} \text{ J}
−
10
×
1
0
−
29
J
d.
−
9
×
10
−
20
J
-9 \times 10^{-20} \text{ J}
−
9
×
1
0
−
20
J
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