Two spherical conductors A and B of radii a and b (b> a) are placed concentrically in the…
Physics · Class 12 · CBSE — Electrostatic Potential & Capacitance
Two spherical conductors A and B of radii a and b (b> a) are placed concentrically in the air. The two are connected by a copper wire as shown in the figure. The equivalent capacitance of the system is

- \(4 \pi \varepsilon_{0} b\)
- \(\frac{4 \pi \varepsilon_{0} a b}{b-a}\)
- \(4 \pi \varepsilon_{0}(a+b)\)
- \(4 \pi \varepsilon_{0} a\)
Answer
(A) 4 _ 0 b
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