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A beam of electrons passes undeflected...

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

A

in a circular orbit

B

along a parabolic path

C

along a straight line

D

in an elliptical orbit

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The correct Answer is:
A
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AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IA
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  15. When a positively charged particle enters a uniform magnetic field wit...

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  16. A charged particle goes undeflected in a region containing electric a...

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  17. A charged particle describes a circle under the influence of the magne...

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  18. A charged particle is projected perpendicular to uniform magnetic fiel...

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