Question -
Answer -
Potential of an anode,┬аV┬а=100 V
Magnetic field experienced by the electrons,┬аB┬а=2.83 ├Ч 10тИТ4┬аT
Radius of the circular orbit┬аr┬а=12.0 cm = 12.0 ├Ч 10тИТ2┬аm
Mass of each electron =┬аm
Charge on each electron =┬аe
Velocity of each electron =┬аv
The energy of eachelectron is equal to its kinetic energy, i.e.,
It is the magnetic field, due to its bendingnature, that provides the centripetal force┬а
┬аfor the beam. Hence,we can write:
Centripetal force =Magnetic force
Putting the value of┬аv┬аinequation (1), we get:
Therefore, the specific charge ratio (e/m)is