JEE Main 2005 Physics question

PhysicsMoving Charges and MagnetismJEE Main 2005

A charged particle of mass m and charge travels on a circular path of radius that is perpendicular to a magnetic field B. The time taken by the particle to complete one revolution is

Answer: (4)

Solution

, and \frac{2π r}{v}\frac${2π

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Question ID VK-038567