A) An electron is moving horizontally toward the North in a region of space wher

Question

A) An electron is moving horizontally toward the North in a region of space where there is a magnetic
field which is pointing vertically downward. In which direction is the magnetic force on the electron?

(a) Down
(b) Up
(c) North
(d) West
(e) East

B) A charge can move through a region where there is a non-zero magnetic field and not experience a
force by

(a) travelling very quickly.
(b) travelling parallel to the magnetic field direction.
(c) travelling perpendicular to the magnetic field direction.
(d) travelling very slowly.
(e) travelling in a circle.

Explanation / Answer

A) The electron experiences a force in the west direction . so correct option is (d) B) Charge can not experience a force when it travels parallel to the magnetic field direction. So correct option is (b)

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