A charged particle with mass m and charge q is moving with velocity v. If it is under the influence of a magnetic field B perpendicular its direction of motion, it moves in a circular shape. What is the radius of this circle and what is the work done by the magnetic force acting on the particle for a single rotation around the circle? Option1 Option2 Option3 Option4 Option5 qB mqv r = mv mv r = QB' qB' W = my qB' W = 0 2nrqB W = qBr W = 0 W = qBr

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