Electricity and Magnetism

The line of tension by charge

Problem by Zainal Abidin
30 Nov 1999 00:00 WIB

A long cylindrical solenoid of radius R takes a constant current, which creates a uniform magnetic field B inside the solenoid. An electron moves in the radial direction (perpendicular to the axis of the solenoid), with velocity v (see Figure). After some time, the electron left the solenoid. Determine the time T for the electron motion inside the solenoid.