Answered: Find the direction of the force exerted…

Find the direction of the force exerted by the field on an electron for each of the following directions of the electron’s velocity

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Question

An electron gun fires electrons into a magnetic field
directed straight downward. Find the direction of the
force exerted by the field on an electron for each of the
following directions of the electron’s velocity: (a)
horizontal and due north; (b) horizontal and 30° west of
north; (c) due north, but at 30° below the horizontal; (d)
straight upward. (Remember that an electron has a
negative charge.)

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