A “coulomb” is:
A. one ampere per second
B. the quantity of charge that will exert a force of 1 N on a similar charge at a distance of 1 m
C. the amount of current in each of two long parallel wires, separated by 1 m, that produces a force of 2 × 10−7 N/m
D. the amount of charge that flows past a point in one second when the current is 1 A
E. an abbreviation for a certain combination of kilogram, meter and second
