Figure shows two large cylindrical shells having uniform linear charge densities +λ and −

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Figure shows two large cylindrical shells having uniform linear charge densities +λ and −λ. Radius of inner cylinder is ′a′ and that of outer cylinder is ′b′. A charged particle of mass m, charge q revolves in a circle of radius r. Then, its speed ′v′ is : (Neglect gravity and assume the radii of both the cylinders to be very small in comparison to their length.)

Accepted Answer

Using Gauss&#8242;s law for Gaussian surface shown in figure. ; E . 2&#960;rl = &#8756; E = For circular motion.qE = &#8756; V =

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