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Question

# A charged particle moves in a circular path in a uniform magnetic field.If the speed is reduced then its time period willdecreaseremain sameincreaseNone of these

A
increase
B
decrease
C
remain same
D
None of these
Solution
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#### The time period of a charged particle in a uniform magnetic field perpendicular to direction of motion is given by :T=2πmqBwhich is independent of speed of particle, hence T will remain same.

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