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A beam of electrons passes underfected...

A beam of electrons passes underfected throgh unifromly perpendicular electric and magnetic fields. If the electric fiedl is swiched off, and the same magnetic field is mainted fiedl is maintetained the electrons move:

A

in an elliptical orbit

B

in acircular orbit

C

along aparobolic path

D

along a straight line

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The correct Answer is:
b
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