Question

Give Scientific reason
Connecting  wires  in  a  circuit  are  made  of
copper  and  aluminum

MSCERT Class 10 General Science Ch4 The Electric Spark

Answer 1

i.Copper and aluminium offer a low resistance to the flow of current and hence they are good conductors of electricity.
ii.Copper and aluminium are highly ductile and hence can be used for preparing the wire.
iii.Copper being more ductile, it is used in making thin wires, and aluminium is used for making thicker wires.

Answer 2

Connecting wires in a circuit are made of copper and aluminum because 
they are very good conductors of electricity
much of electricity will not be wasted in long distance transmission
they are highly ductile
they have high melting points