Under different humidity conditions, the electrostatic potential produced by human activities is different. In the dry season, human static electricity can reach several thousand volts or even tens of thousands of volts. Experiments show that when the electrostatic voltage is 50,000 volts, the human body has no uncomfortable feeling, and carrying 1.2 million volts of high-voltage static electricity is not life-threatening. However, electrostatic discharge will also produce electromagnetic fields around it. Although the duration is short, the intensity is great.

You must ask again, won't such a high voltage be dangerous? Because human static electricity, such as the static electricity that pops up when taking off a sweater, has 3000 volts, but the current is very small, so it will not cause harm to people. Have you ever studied ohm's law? Think for yourself.

Human body resistance:

It is mainly skin resistance, and the cuticle with 0.05 ~ 0.2 mm thickness of epidermis has great resistance. When the skin is dry, the human body resistance is about 6 ~10kΩ, even as high as100kΩ. But the cuticle is easy to be destroyed, and the skin resistance after cuticle removal is about 800 ~1200 Ω; The internal resistance is about 500 ~ 800ω.

In addition, there is no fixed value of human body resistance, which varies from person to person, but also depends on which part of the body. The average person's hands and feet have greater resistance (except acupuncture points), and the trunk and other parts are smaller. Human resistance is also related to people's mood and physical health.