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An electron enters a chamber in which a ...

An electron enters a chamber in which a uniform magnetic field is present as shown. Ignore gravity

During its motion inside the chamber

A

The force on the electron remains constant

B

The kinetic energy of the electron remains constant

C

The momentum of the electron remains constant

D

The speed of the electron increases at a uniform rate

Text Solution

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The correct Answer is:
B
Work done = 0
Hence , kinetic energy = constant .
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