What is the radius of the electron orbit if the electric field is turned off?Express your answer to two significant figures and include the appropriate units.

Previous answer for part A applies to part B

What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields. EE and BB are also perpendicular to each other and have magnitudes 3700 V/mV/m and 5.510³ TT , respectively.Express your answer to two significant figures and include the appropriate units.

vv =	6.7105 msms