Which of these best defines the term resistance?
the work done on moving electric charge, per unit charge
the amount of charge flow per unit time
the relationship between current and voltage in a circuit
the tendency of a material to restrict the flow of current
(b)
Two separate electric circuits each have a single loop, consisting of a battery connected by identical wires to a lightbulb. The batteries in both circuits have the same voltage, but the lightbulb in one circuit has a lower resistance than the other. If we compare the current in the two circuits, which of the following is true?
The two circuits have the same current, because they have the same battery voltage.
The higher current is in the circuit with the higher resistance.
The higher current is in the circuit with the lower resistance.