An electron is moving in a concentric circular orbit inside asolenoid of radius 4.89 cm, in such a manner that it grazesthe inside surface of the coil at all the points of its orbit. Thespeed of the electron is 9,820 m/s, and the solenoid has3.50×103 turns/m. Assume the coils of the solenoid are sothin the electron moves essentially at the radius of the solenoid.What electric current is passing through the solenoid?