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A uniformly charged ring of radius 0.1 m...

A uniformly charged ring of radius `0.1 m` rotates at a frequency of `10^(4) rps` about its axis.Find the ratio of energy density of electric field to the energy density of the magnetic field at a point on the axis at distance `0.2 m` from the centre.(Use speed of light `c=3xx10^(8) m//s,pi^(2)=10`)

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