AIPMT-MAIN Physics Moving Charges and Magnetism Class 12 Questions

A particle of mass m, charge Q and kinetic energy T enters a transverse uniform magnetic field of induction 𝐵⃗ . After 3 seconds the kinetic energy of the particle will be

A closed loop PQRS carrying a current is placed in a uniform magnetic field. If the magnetic forces on segments PS, SR and RQ are F₁, F₂ and F₃ respectively and are in the plane of the paper and along the directions shown, the force on the segment QP is