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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A positively charged particle of mass m and charge q is projected on a rough horizontal x-y plane surface with z- axis in the vertically upward direction. Both electric and magnetic fields are acting in the region and given by

A positively charged particle of mass m and charge q is projected on a rough horizontal x-y plane surface with z- axis in the vertically upward direction. Both electric and magnetic fields are acting in the region and given by

A small charged ball having mass m and charge q is suspended from a rigid support by means of an inextensible thread of length l. It is made to rotate on a horizontal circular path in a uniform calculate the radius of circular path on which the ball moves. time independent magnetic field of induction B which is directed upward. The time period of revolution of the ball is T0. If the thread is always stretched