In the e/m experiment, if the accelerating voltage is 300 Volt and the radius of the bean path is 3.2 centimeter, Find the:
a. speed of the electron?
b. magnitude of the magnetic induction?
c. centripetal force on a single electron?
d. Lorentz force on a single electron?
e. current required in a pair of Helmholtz coils of radius 15 cm?