205,384 views
26 votes
26 votes
A circuit with blank-diameter(small/large) connecting wires at a blank temperature(low/high) will have the least electrical resistance

A circuit with blank-diameter(small/large) connecting wires at a blank temperature-example-1
User Snukker
by
3.0k points

1 Answer

12 votes
12 votes

Resistance is directly proportional to temperature, so with high temperature, resistance is also high.

Resistance is inversely proportional to area of cross-section, and so the diameter. Thus, with large diameter resistance will be less.

Hence the answer is large diameter and low temperature will have least electrical resistance.

User Sifat Haque
by
2.7k points