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Period of a charge's circular motion in a field does not depend on its speed

This type of question, asked 3 times: 15 Apr 2026 S2, 17 Apr 2026 S2, 12 May 2026 S1. All 3 questions below, oldest first.

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  1. Question 1

    15 Apr 2026 S2

    132
    A charge moves in a circular path perpendicular to a magnetic field. The time period of revolution is independent of

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  2. Question 2

    17 Apr 2026 S2

    133
    In the cyclotron, as radius of the circular path of the charged particle increases, (ω\omega = angular velocity, V = linear velocity)

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  3. Question 3

    12 May 2026 S1

    133
    A charged particle of mass mm and charge qq travels on a circular path, (of radius 55 unit) is perpendicular to a magnetic field BB. The time taken by a particle to complete 1010 revolutions is

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