Question

On a weight to weight basis the electrical conductivity of aluminium is twice that of
1) Fe
2) Ga
3) Cu
4) Ni​

Answer 1

Answer:

3. Cu

Explanation:

copper is the correct answer

Answer 2

Answer:

On a weight to weight basis, the electrical conductivity of aluminium is twice that of Cu.

Explanation:

Aluminium is cheaply available on a weight-to weight basis, the electrical conductivity of aluminium is twice that of copper. Therefore, aluminium wire is used to make transmission cables.

On a weight to weight basis, the electrical conductivity of aluminium is twice that of copper.

Aluminium has 61 percent of the conductivity of copper but has only 30 percent of the weight of copper. That means that a bare wire of aluminium weighs half as much as a bare wire of copper that has the same electrical resistance. Aluminium is generally less expensive than copper conductors.