During the construction of a building, the lightning conductor was left hanging in the air by mistake. Would the lightning conductor be still effective? Explain.

No, the lightning conductor will not work, if it is left hanging in the air by mistake because:

i. The charge will pass only when the lightning conductor is connected to the earth by using any metal plate.

ii. It is given that the lightning conductor was left hanging in the air, hence no charge will pass.

iii. As a result, the lightning conductor will not be effective anymore.