A current-carrying conductor that is 8.00x10^-2 m long is placed perpendicular to a magnetic field that has a strength of 6.00x10^-3 T. During a 3.00s time interval, 7.50x10^19 electrons pass a point in the conductor. The magnitude of the average magnetic force exerted on the conductor in scientific notation is a.bcx10^-d N ?

1 answer

a. 2.25
b. 4.50
c. 6.75
d. 9.00

Answer: b. 4.50x10^-3 N