An electric field of intensity 6×104 V/m is applied perpendicular to the direction of motion of the electron. A magnetic field of intensity 8×10−2wb/m2 is applied perpendicular to both the electric field and direction of motion of the electron. What is the velocity of the electron if it passes undeflected?
Answer & explanation
Correct answer: option 2
For undeflected, Electric force = Magnetic Force.
so, qE = qvB
s0, E = vB