Question

A charged particle revolves in circular path in uniform magnetic field after accelerating by a potential difference of V volts. Choose the correct options if `V` is doubled.
A. kinetic energy of particle will become two times
B. radius in circular path will become two times
C. radius in circular path wil become `sqrt2` times
D. angular velocity will remain unchanged

Answer 1

Correct Answer - A::C::D
`KE=qV` or `KEpropV`
`r=sqrt((2qVm))/(Bq)` or `rpropsqrtV`
`T=(2pim)/(Bq)` or `T` independent of `V`.