39 A beam of well collimated cathode rays traveling with a

Last updated: 6/24/2023

39 A beam of well collimated cathode rays traveling with a speed of 5 x 10 m s enters a region of mutually perpendicular electric and magnetic fields and emerges undeviated from this region If B 0 02 T the magnitude of electric field is A 10 V m B 2 5 x 10 Vm C 1 25 x 10 V m D 2 x 10 Vm