The linear charge density on a dielectric ring of radius R varies with θ as λ=λ0cosθ2, where λ0 is a constant. Find the potential at the centre of the ring. [in volt]

The linear charge density on a dielectric ring of radius R varies with

1.	The linear charge density on a dielectric ring of radius R varies with θ as λ=λ0cosθ2, where λ0 is a constant. Find the potential at the centre of the ring. [in volt]
Answer» The linear charge density on a dielectric ring of radius R varies with $θ$ as $λ = λ_{0} cos \frac{θ}{2},$ where $λ_{0}$ is a constant. Find the potential at the centre of the ring. [in volt]

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The linear charge density on a dielectric ring of radius R varies with θ as λ=λ0cosθ2, where λ0 is a constant. Find the potential at the centre of the ring. [in volt]

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