A cyclotron is a device for accelerating charged particles to high speeds as they follow an expanding spiral path. The charged particles are subjected to both an electric field and a magnetic field. One of these fields increases the speed of the charged particles, and the other field causes them to follow a curved path. Discuss which field performs which function.
a) The electric field increases speed, and the magnetic field causes a curved path.
b) The magnetic field increases speed, and the electric field causes a curved path.
c) Both fields increase speed and cause a curved path.
d) Neither field increases speed but both cause a curved path.