IB Physics Electric and Magnetic Fields

Tutorial questions on problems with electric and magnetic fields present are given below.

  1. Two charged particles moving to the right at the same speed enter a uniform electric field. Both particles curve upwards in identical paths. Both particles must have the same (a) mass, (b) charge, (c) charge to mass ratio, (d) initial momentum
  2. Did J. J. Thomson use the method of "balancing" the electric and magnetic forces on a beam of cathode rays in his original experiment?