関連ワード:
copper is a conductor of electricity true or false copper is a good conductor of electricity true or false copper is a poor conductor of electricity true or false copper is a very good conductor of electricity true or false copper wire is a good conductor of electricity true or false copper is the best conductor of electricity true or false copper sulphate solution is a poor conductor of electricity true or false copper is a good conductor of heat and electricity true or false copper is a conductor of electricity or not copper is a conductor of electricity whereas plastic is an insulator of electricity true or false
