1, it is not recommended to turn on the lights indoors when it thunders. Theoretically, it is safest not to turn on the light. When it thunders, the voltage will rise instantly, which may cause the lights to go out and cause a fire. When it rains, the clouds in the sky have positive and negative poles. When two kinds of clouds meet, they will emit lightning and a lot of heat, which will make the surrounding air heat and expand. Instantly heated and expanded air will push the surrounding air and cause explosive vibration.

2. Lightning is a plasma conduction state formed by the extranuclear electrons of space gas excited by electric field, accompanied by optical radiation and thermal effect. Due to the action of light and thermal radiation, the temperature of the surrounding air rises sharply, leading to thermal expansion, which in turn pushes the air to form a shock wave, that is, the sound of thunderstorm we hear. The greater the concentration of water molecules in the air, the more impurities there are, the greater the possibility of breakdown ionization by high-voltage electric field, and the higher the probability and intensity of lightning strike.