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Fleming's Left Hand Rule

An electron i...

Question

An electron is moving vertically downwards at any place. The direction of magnetic force acting on it due to horizontal component of earth's magnetic field will be

A

towards east

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B

towards west

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C

towards north

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D

towards south

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Solution

The correct option is C towards west
According to Fleming left hand rule, if the direction of horizontal component of earth's magnetic field is from south to north and direction of velocity of electron is downwards then the direction of the force given by the thumb is towards west.

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