If air and cloud were good conductors of electricity, do you think lightning could occur? Explain.
Conductors of electricity: Any substance which will let electricity to pass through it is called a conductor.
(a) Give two examples of substances which are good conductors of electricity. Why do you think they are good conductors of electricity? (b) Calculate the resistance of a copper wire 1.0 km long and 0.50 mm diameter if the resistivity of copper is 1.7×10−8Ωm.
Question 17
If air and cloud were good conductors of electricity, do you think lightning could occur? Expalin.