Question

Copper is used in household wiring because _____

A.) It has low resistance
B.) It is a good insulator
C.) It produces light when current passes through it
D.) It produces heat when current passes through it

Answer 1

It's definitely not A or B and I know copper is a good conductor of heat and electricity, so I would say D.

Answer 2

I do think that it is A) .

As, copper is a good conductor of electricity as well as that of heat. Now, as a conductor has a low resistance and hence, copper has low resistance.

\(\LARGE {\color{blue}{\textbf{Conductor}} \quad \rightarrow \quad \color{blue}{\mathsf{Low }} \space \mathsf{Resistance} \\

\color{red}{\textbf{Insulator}} \quad \rightarrow \quad \color{red}{\mathsf{High}} \space \mathsf{ Resistance} }\)