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A charged particle having its charge to ...

A charged particle having its charge to mass ratio as `beta` goes in a conical pendulum oflength `L` making an angle `theta` with vertical and angular velocity `omega`. If a magnetic field B is directed vertically downwards (see figure-4.238):

A

`B=1/beta [omega- (g)/(omegaL cos theta)]`

B

Angular momentum of the particle about the point of suspension remains constant

C

If the direction of B were reversed maintaining same `omega` and `L`, then `theta` will remain unchanged

D

Rate ofchange of angular momentum of the particle about the point of suspension is not a constant vector.

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PHYSICS GALAXY - ASHISH ARORA-MAGNETIC EFFECTS OF CURRENT AND MAGNETISM-Advance MCQ
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