Force on a charged particle in a uniform field #!#Direction of electric force on a charged particle

Force on Charge Particle

Assertion: Power of a magetic force on a charged particle is always zero. Reason: Power of electric force on charged particle cannnot be zero.

Motion of a charged particle in a uniform magnetic field |Questions

A charged particle is moved along a magnetic field line. The magnetic force on the particle is

A uniform magnetic field of 30 mT exists in the +X direction. A particle of charge +ve and mass 1.67 xx 10^(-27) kg is projected through the field in the + y direction with a speed of 4.8 xx 10^(6) m/s (a) find the force on the charged particle in magnitude and direction (b) find the force if the particle were negatively charged. (c ) Describe the nature of path followed by the particle in both the cases

A charged particle moving in an electric field

Assetrion: Acceleration of charged particle in non-uniform electric field does not depend on velocity of charged particle. Reason: Charge is an invariant quantity. That is amount of charge on particle does not depend on frame of reference.

Force acting on a moving charged particle in a region of electric and magnetic fields is called