Electron Moving in Magnetic Field An electron with a speed `v_0 ( < < c)` moves in a circle of radius `r_0`, in a uniform magnetic field. This electron is able to travel in a circular path as magnetic field is perpendicular to the velocity of the electron. The time required for one revolution of the electron is `T_0`. The speed of the electron is now, doubled to `2v_0`.
The radius of the circle will change to
Options:
(a) `4r_0`
(b) `2r_0`
(c) `r_0`
(d) `r_0'/'2`