What is the approximate current range of a lightning strike?

The current range of a lightning strike typically falls between 1 kA and 200 kA, making that the correct choice. This range is a result of the extreme energy transfer that occurs during a lightning event. A lightning strike can discharge its energy in a matter of microseconds, generating a peak current that can exceed 100 kA, with some strikes reaching up to 200 kA or more.

This immense current can result in significant electrical and thermal energy, which is why lightning can cause extensive damage to structures, electrical systems, and even ignite fires upon striking. The behavior and characteristics of lightning are also influenced by factors such as atmospheric conditions and the specific type of discharge, leading to variations in measured currents.

In contrast, the other options fall far below the actual current associated with lightning and thus do not accurately represent the phenomenon. For instance, the lower ranges, such as 10 A to 100 A or 100 mA to 1 A, are typical of household or electronic currents and are not representative of the massive energy associated with a lightning strike.