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Fleming's Left Hand Rule

An electron h...

Question

An electron having a charge e moves with a velocity v in X-direction. A magnetic field acts on it in Y-direction. The force on the electron acts in

A

positive direction of Y-axis

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B

negative direction of Y-axis

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C

positive direction of Z-axis

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D

negative direction of Z-axis

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Solution

The correct option is D negative direction of Z-axis
As electron moving in positive x-direction, so the current is moving in negative x-direction ( the direction of your middle finger) and the magnetic field acts on positive Y-direction ( the direction of your index finger) then thumb will be in negative Z-direction which is the direction of force.

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