KCET2007PhysicsMagnetic Effects of Current
A charged particle is moving in a magnetic field of strength B perpendicular to the direction of the field. If q and m denote the charge and mass of the particle respectively, then the frequency of rotation of the particle is
Options
- Af= q B 2 m
- Bf= q B 2 m²
- Cf= 2 ² m q B
- Df= 2 m q B
Correct answer
A. f= q B 2 m
Step-by-step solution
Lorentz force = centripetal force array rlr i.e., B q v & = m v² r B q & =m B q & =m 2 f & f= B q 2 m array