Physics - Capacitor Question with Solution | TestHub

PhysicsCapacitorCapacitanceMedium2 minQB

PhysicsMediumsingle choice

Three long concentric conducting cylindrical shells have radii $R, 2 R$ and $22 R$ . Inner and outer shells are connected to each other. The capacitance across middle and inner shells per unit length is:

Options:

Answer:

Solution:

$C = \frac{2 π ϵ _{0}}{ℓ n 2 R / R} + \frac{2 π ϵ _{0}}{ℓ n \frac{2 2}{2 R} R} = \frac{2 π ϵ _{0}}{ℓ n 2} [1 + 2] = \frac{6 π ϵ _{0}}{ℓ n 2}$

Stream:JEESubject:PhysicsTopic:CapacitorSubtopic:Capacitance

⏱ 2mℹ️ Source: QB

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