Moving Charges ...

Identify the correct statement from the following

A charged particle of mass m and charge q describes circular motion of radius r in a uniform magnetic field of strength B. The frequency of revolution is

An electron is accelerated by a potential difference of 12000 volts. It then enters a uniform magnetic field of 10^–3 T applied perpendicular to the path of electron. Find the radius of path. Given mass of electron = 9 × 10^–31 kg and charge on electron = 1.6 × 10^–19 C

The charge on a particle Y is double the charge on particle X. These two particles X and Y after being accelerated through the same potential difference enter a region of uniform magnetic field and describe circular paths of radii R₁ and R₂ respectively. The ratio of the mass of X to that of Y is

A particle with 10^–11 coulomb of charge and 10^–7 kg mass is moving with a velocity of 10⁸ m/s along the y–axis. A uniform static magnetic field B = 0.5 tesla is acting along the x–direction. The force on the particle is

A particle of charge qand mass m moving with a velocity v along the x–axis enters the region x>0 with uniform magnetic field B along the k ̂direction. The particle will penetrate in this region in the x–direction upto a distance d equal to

A charged particle is moving with velocity v in a magnetic field of induction B. The force on the particle will be maximum when

A charged particle enters a magnetic field H with its initial velocity making an angle of 45° with H. The path of the particle will be

An electron and a proton enter a magnetic field perpendicularly. Both have same kinetic energy. Which of the following is true

A charged particle moves in a uniform magnetic field. The velocity of the particle at some instant makes an acute angle with the magnetic field. The path of the particle will be