Cathode rays are accelerated by a P.D. of 2000 volt and enter the plates of a Thomson tube as acollimated beam. The P.D. between the plates is 800 volt and the plates are separated by adistance of 1 cm. The path of the beam of electrons is normal to the electrical field. Find themagnetic field that must be applied perpendicular to the beam over the electrical field so thatthe beam is undeviated. e/m = 1.76 × 1011 C/kg.%3D

Cathode rays (also known as electron beams or e-beams) are electron streams that can be seen in…

Answered: Cathode rays are accelerated by a P.D.…

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