Consider two concentric spherical conductors with the inner sphere of diameter 1 m and the outer sphere of diameter 2 m. Assume +Q and -Q Coulomb charges on the inner and outer spheres and also that they are separated by a dielectric medium with permittivity ε F/m. The capacitance of this spherical capacitor in Farad is

\(\dfrac{2\pi\varepsilon}{\ln 2}\)

Consider two concentric spherical conductors with the inner sphere of

1.	Consider two concentric spherical conductors with the inner sphere of diameter 1 m and the outer sphere of diameter 2 m. Assume +Q and -Q Coulomb charges on the inner and outer spheres and also that they are separated by a dielectric medium with permittivity ε F/m. The capacitance of this spherical capacitor in Farad is
A.	4πε
B.	8πε
C.	\(\dfrac{2\pi\varepsilon}{\ln 2}\)
D.	Q/2
Answer» B. 8πε

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Consider two concentric spherical conductors with the inner sphere of diameter 1 m and the outer sphere of diameter 2 m. Assume +Q and -Q Coulomb charges on the inner and outer spheres and also that they are separated by a dielectric medium with permittivity ε F/m. The capacitance of this spherical capacitor in Farad is

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