question_answer 22)

An electron gun with its anode at a potential of 100 V Ores out electrons in a spherical bulb containing hydrogen gas at low pressure ( of Hg). A magnetic field of 2-83 x  T curves the path of the electrons in a circular orbit of radius 12*0 cm. (The path can be viewed because the gas ions in the path focus the beam by attracting electrons, and emitting light by electron capture; this method is known as the 'fine beam tube? method.) Determine elm from the data.  

Answer:

                Here    Now   ?.(1) Also     From eqn. (1), .