[" 41.An electron moves in a circular or...

[" 41.An electron moves in a circular orbit with a "],[" uniform speed "v" .It produces a magnetic field "],[B" at the centre of the circle.The radius of the "],[" circle is proportional to "],[[" (a) "sqrt(B/v)," (b) "B/v],[" (c) "sqrt(v/B)," (d) "v/B]]

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[" 41.An electron moves in a circular orbit with a "],[" uniform speed "v" .It produces a magnetic field "],[B" at the centre of the circle.The radius of the "],[" circle is proportional to "],[[" (a) "sqrt(B/v)," (b) "B/v],[" (c) "sqrt(v/B)," (d) "v/B]]

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