Under the influence of a uniform magnetic field a charged particle is moving in a circle of radius $R$ with…

Under the influence of a uniform magnetic field a charged particle is moving in a circle of radius $R$ with constant speed $v$. The time period of the motion:
  1. depends on both $R$ and $v$
  2. is independent of both $R$ and $v$
  3. depends on $R$ and not on $v$
  4. depends on $v$ and not on $R$.

Solution

$T=\frac{2 \pi m}{q B}$ which is independent of both $R$ and $V$.

Asked in: NEET 2007

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