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Q#1 Electric and Magnetic Fields GATE EC 2016 MCQ +1 mark -0.33 marks

A uniform and constant magnetic field  exists in the direction in vacuum. A particle of mass m with a small charge q is introduced into this region with an initial velocity. Given that B, m, q,  and  are all non-zero, which one of the following describes the eventual trajectory of the particle?

Helical motion in thedirection.  

Circular motion in the xy plane.  

Linear motion in the direction

Linear motion in the direction

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