The Nature of Electricity: Lightning and Thunder

The video explains the dangers of lightning, which kills 100 people and ignites 75-100 forest fires annually in the U.S. It describes how electrical charges form in thunderclouds due to updrafts and downdrafts, leading to charged regions. When the charge buildup becomes significant, it discharges as lightning, occurring in a fraction of a second.

Describe the process that occurs when the buildup of electrical charges becomes great.

What is the time frame in which a lightning discharge occurs?