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Problem
Problem
Two metal spheres of radii
a
a
a
and
b
b
b
are connected by a thin wire. Their separation is very large compared to their dimensions. The capacitance of this system is a.
4
π
ϵ
0
(
a
b
)
4\pi\epsilon_0(ab)
4
π
ϵ
0
(
ab
)
b.
2
π
ϵ
0
(
a
+
b
)
2\pi\epsilon_0(a+b)
2
π
ϵ
0
(
a
+
b
)
c.
4
π
ϵ
0
(
a
+
b
)
4\pi\epsilon_0(a+b)
4
π
ϵ
0
(
a
+
b
)
d.
4
π
ϵ
0
(
a
2
+
b
2
2
)
4\pi\epsilon_0\left(\frac{a^2+b^2}{2}\right)
4
π
ϵ
0
(
2
a
2
+
b
2
)
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