Q150. A particle having mass m and charge q moves in a circular path in a magnetic field of strength B. If the radius of the circular path is r, the time required by this particle to complete one revolution is:Physics — NUST Mock 9 — Question 150 of 200A. 2πm/qB B. 2πm/qBr C. qrB/m D. 2πmq/rB E. 2mq/rB Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →