Question

13.
An electron is moving horizontally towards east. If it enters in magnetic field
directed upward then the electron will be deflected in the direction of
(a) East (b) West
(c) North
(d) South​

Answer 1

Answer:

An electron moving to the east in a horizontal plane is deflected towards south by a magnetic field. When the direction of the electron is from west to east, the current is in the reverse direction. That is, the current is in the east-west direction. Applying the right-hand thumb rule, we get that the direction of magnetic field at a point below the wire is from north to south. That is, downwards.

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