Many people know that this is static electricity, but why is it "feeling numb and creepy after taking a bath" ”Well, this is a problem that some people are not clear about.Let's analyze: In fact, static electricity exists at all times, but the feeling of no electric shock when touching the metal shell of the computer when the hands are dry is that the resistance of the hands is relatively large, which is equivalent to an insulator;The hands were wet after bathing, because the water is a conductor, the "case shell" passes through the "hands" to the "body", then through the "feet" and finally contacts the "earth", forming a circuit loop as a whole.The current passes through the body, so there is a "numb feeling of leakage".If any part of the circuit above is interrupted, there will be no feeling of electric shock. For example, when you touch the computer after taking a bath, you are wearing insulated boots, and there will be no electric shock. Finally, static electricity on the computer sometimes causes damage to the computer. It's better to pull a ground wire so that the computer is safer.
