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

The resistance of a conductor is directly proportional to its length and inversely proportional to its cross-sectional area. Therefore, a thick conductor with a short length will have less resistance than a thin conductor with a long length. The temperature of the conductor does not have a significant effect on its resistance unless it reaches a critical temperature where it begins to change its physical properties.

Of the Following the Copper Conductor That Has the Least