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?
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

Question

Quizplus · Accepted Answer

According to Ohm's Law (V = IR), the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R). Therefore, to triple the current, Jenkins needs to triple the voltage, assuming the resistance remains constant.

Jenkins Constructed a Circuit Consisting of a Variable Source, Wires