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Fleming's Left Hand Rule

A proton is p...

Question

A proton is projected horizontally eastward in a uniform magnetic field, which is horizontal and southward in direction. The proton will be deflected

A

upward

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B

downward

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C

northward

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D

southward

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Solution

The correct option is C downward
By Fleming's left hand rule, taking velocity (middle finger) in east direction and magnetic field (index finger) in south direction, we get force (thumb) in vertically downward direction.

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