NEET PhysicsClass 12Motion in a magnetic fieldMediumAssertion–Reason

Electrons of different speeds are injected perpendicular to the same uniform magnetic field. Read the Assertion (A) and Reason (R) about their motion and choose the correct option.

Assertion (A): All the electrons take the same time to complete one revolution.
Reason (R): The radius of the circle is proportional to the speed, so the circumference and the speed increase in the same proportion.

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Electrons of different speeds are injected perpendicular to the same uniform magnetic field. Read the Assertion (A) and Reason (R) about their motion and choose the correct option.

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