Answer this question: Mr. Jenkins constructed a circuit consisting of a variable source, wires, and a resistor. In order to triple the amount of current, how should he change the voltage of the source?
OPTIONS:
(a). make the voltage three times larger;
(b). make the voltage one-third as great;
(c). make the voltage nine times larger;
(d). make the voltage one-ninth as great;. Answer:
(a).