The linear charge density on a ring which varies with angle θ can be represented as λ=Kcosθ2,wherek = 2 cm^{-1}and\theta$ is the angle subtended by the radius of the ring with the horizontal. The potential at the centre of the ring is

The linear charge density on a ring which varies with angle θ can be

1.	The linear charge density on a ring which varies with angle θ can be represented as λ=Kcosθ2,wherek = 2 cm^{-1}and\theta$ is the angle subtended by the radius of the ring with the horizontal. The potential at the centre of the ring is
Answer» The linear charge density on a ring which varies with angle $θ$ can be represented as $λ = K c o s \frac{θ}{2}, w h e r e$ k = 2 cm^{-1} $a n d$ \theta$ is the angle subtended by the radius of the ring with the horizontal. The potential at the centre of the ring is

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The linear charge density on a ring which varies with angle θ can be represented as λ=Kcosθ2,wherek = 2 cm^{-1}and\theta$ is the angle subtended by the radius of the ring with the horizontal. The potential at the centre of the ring is

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