defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Moving Charges and Magnetism Magnetic Force on a Current-Carrying Wire
An electron is moving with a velocity v in a magnetic field B. The magnetic field is perpendicular to the velocity of the electron and the electron is moving on a circular path of radius r. Which of the following represent the charge per unit mass (e/m) of the electron?
1
rB/v
2
B/rv
3
v/rB
4
v/2rB