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A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move

Option: 1

in a circular orbit


Option: 2

along a Parabolic Path


Option: 3

along a straight line


Option: 4

 in an elliptical orbit.


Answers (1)

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If the electric field is switched off, and the same 2 magnetic field is maintained, the electrons move in a circula orbit and electron will travel a magnetic field Perpendicular to its velocity.

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