Question

1 points A beam of electrons is injected between two parallel metallic plates separated by a distance d = 1 mm (Figure 1). A 35 T magnetic field is generated between the two plates in such a way that it produces a magnetic force on the electrons opposite to the electric force. What should be the potential difference in volts) between the two plates to allow an electron of 1.0x10 m/s speed to travel without deflection? X x X X X X E d X X X X X x х X X X

Answer 1

Solution-The potential difference between two plate is -

V = 350 Volt

The detailed soluton is given below , please find the attached page-

Solution :- Guien data :- distance de 1 mm = 10-3mt B = 3 5 Tesla Speed vo m/see. 1x104 B x B' E X X xx eletron d X X x х we know that 도 wla Electric EVXB = 1X10 1X10 * x35 fuld E= 35x109 Vm Heree the potential difference between the two plate is - V = Ex d V = 35X104 x 10-3 V = 350 Volt Ane