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Magnetic Field Due to Straight Current Carrying Conductor

A charged par...

Question

A charged particle enters a uniform magnetic field, parallel to the field, its Kinetic energy :

A

Remains constant

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B

Increases

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C

Decreases

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D

Becomes zero.

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Solution

The correct option is A
Remains constant

When a charged particle enters, parallel to the uniform magnetic field, it is not acted by any force, that is, it is not accelerated. Thus, its speed remains constant, and so does its kinetic energy.

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