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The Circular Motion

A negative te...

Question

A negative test charge is moving near a long straight current carrying wire . A force will act on the test charge in a direction parallel to the direction of the current, if the motion of the charge is in a direction

A

towards wire

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B

the same as that of current

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C

opposite to that of current

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D

perpendicular to both the direction of current and the direction towards wire.

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Solution

The correct option is A towards wire
The magnetic force $\to F$ shall act on the negatively charged test particle in direction parallel to current carrying wire, if the velocity $\to V$ of the negative charge is as shown.

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