Question

When lightning strikes, electricity passes from the sky to the earth despite the fact that air is an insulator. How does it happen??​

Answer 1

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Lightning - Lightning is a common cause of outages. Lightning strikes can hit our electrical equipment, causing you to lose power. Lightning can also strike trees, which may fall onto power lines and cause outages. ... Wind - High winds may cause objects, such as fallen trees, to come in contact with power lines.

Answer 2

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In the presence of high current, insulators break down and start acting as conductors, conducting electricity. Under normal conditions, the air around clouds act as an insulator. During lightining, high current is released. The air around the clouds start to break down and begin to conduct electricity. The air acts like wires in a closed circuit helping current flow from the sky to the earth...

Hope it helps..