4.20 V of electromotive force are induced on a 427-mm-long piece of wire that is moving at a rate of 0.186 m/s. What is the magnetic field that induced the EMF? a. 1.89×10-2 T
b. 52.9 T
c. 0.334 T
d. 5.29×104 T

Wut 

Electrical charge is measured in coulomb.(c). the amount of an electrical charge that moves in a circuit depends on the current flow and how long it flows for. a current of 10 a flows for 30 s,then 10 x=300 coulombs of electrical charge moves