Answer :

These three metallic hollow spheres form two spherical capacitors, which are connected in series.

Solving them individually, for 1) and 2)

For a spherical capacitor formed by two spheres of radii ro > ri is given by

C =


C: Capacitance

ri: inner radius

ro: outer radius

k: relative permittivity or dielectric constant

: permittivity of space



Now, the capacitors are connected in series, net capacitance for series connected capacitors is given by –

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