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For a charged particle moving in a circle inside a uniform magnetic field, the time period does not depend on its

1. speed
2. mass
3. charge
4. magnetic field strength

Correct answer: speed

Solution

The time period of a charged particle moving in a magnetic field is determined by the radius of the circular path and the magnetic field strength, and it remains constant regardless of the particle's speed. This is because the magnetic force provides the necessary centripetal force, leading to a fixed frequency of rotation.

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