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An electron is moving in the north direc...

An electron is moving in the north direction. It experiences a force in vertically upward direction. The magnetic field at the position of the electron is in the direction of

A

East

B

West

C

North

D

South

Text Solution

Verified by Experts

The correct Answer is:
B
`vecV to hati`
`vecF to hatj`
since , `vecF = -e(vecv xx vecB)`
`hatj =- (hati xx (hatk))`
magnetic field along +ve z-axis
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