two wires of equal length,one of aluminium and the other is copper,have same resistance Which one of the two wires - Science - Electricity

Question

two wires of equal length,one of aluminium and the other is
copper,have same resistance Which one of the two wires is lighter?
hence explain why aluminium wires are preferred for overhead power
cables Relative density of Al=2 7,that of copper=8 9,resistivity of
Al=2 63*10^-8 ohm-metre and that of copper=1 72*10^-8 ohm-metre

Debalina Deb · Accepted Answer

Dear student,

As aluminium is lighter than copper, thats why aluminium is preferred for overhead power cables over copper Regards,