Two long cylindrical wires of radius -a- have linear charge densities - and - respectively- The distance between them is na n - 1- Find the capacitance per unit length of the system-

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Standard XIII

Physics

Capacitance of a Random Conductor

Two long cyli...

Question

Two long cylindrical wires of radius 'a' have linear charge densities $+ λ$ and $- λ$ respectively. The distance between them is na (n > 1). Find the capacitance per unit length of the system.

π ϵ_{0}

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\frac{π ϵ_{0}}{n}

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\frac{π ϵ_{0}}{l n (n)}

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\frac{2 π ϵ_{0}}{l n (n)}

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Solution

The correct option is C $\frac{π ϵ_{0}}{l n (n)}$

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Two long cylindrical wires of radius 'a' have linear charge densities +λ and −λ respectively. The distance between them is na (n > 1). Find the capacitance per unit length of the system.

The correct option is C πϵ0ln(n)

Two long cylindrical wires of radius 'a' have linear charge densities $+ λ$ and $- λ$ respectively. The distance between them is na (n > 1). Find the capacitance per unit length of the system.

The correct option is C $\frac{π ϵ_{0}}{l n (n)}$