A resistor is made out of a low wire having a length L.Each end of the wire is attached to a terminal of a battery having a constant voltage Vo.A current I flows through the wire.If the wire were cut in half,making two wires of length L/2,and both wires were attached to the battery (the end of both wires attached to one terminal,and the other ends attached to the other terminal),what would be the total current flowing through the two wires?
A)4I
B)2I
C)I
D)I/2

Question

Quizplus · Accepted Answer

The resistance of a wire is directly proportional to its length. If the wire is cut in half, the resistance of each half will be half of the original resistance. Therefore, the total resistance of the two wires will be half of the original resistance. Since the voltage is constant, the current will be inversely proportional to the resistance. Therefore, the total current flowing through the two wires will be twice the original current.

A Resistor Is Made Out of a Low Wire Having