Of the following the copper conductor that has the least resistance is:
A) thin, long and hot
B) thick, short and cool
C) thick, long and hot
D) thin, short and cool
E) thin, short and hot

Question

Quizplus · Accepted Answer

Resistance in a conductor is inversely proportional to its cross-sectional area (thicker means less resistance), directly proportional to its length (shorter means less resistance), and directly proportional to its temperature (cooler means less resistance). Therefore, a thick, short, and cool conductor (B) has the least resistance.

Of the Following the Copper Conductor That Has the Least