Does mosquito swatter touch human body? Xiaobian had a personal experience. After pressing the power supply of the mosquito swatter, Xiaobian first places a finger on the net surface of the mosquito swatter, without any feeling. Then Xiaobian pastes the whole palm of his hand, and still cannot feel the existence of the current. When using scissors to contact the electrified mosquito swatter, sparks appear on the swatter.

　　Why don't you feel it when you touch the electrified mosquito swatter with your hand, but the electric spark comes out when you touch it with scissors? Xiao Bian consults a physics teacher of Liu family middle school. He explained that when the switch is on, the mosquito swatter is easy to short circuit when encountering metal objects. There are three layers of metal net for mosquito swatter, one is protective net, the other two layers are high voltage, and the Zui outer layer and middle layer are balanced and insulated. When the mosquito swatter works, the mosquito will be electrocuted only when it touches the outer and middle grid at the same time, and the human body will feel the current only when it touches the inner and outer grid at the same time.

　　After the electric mosquito, the current is weak, and the normal use is safe for human body. The safe voltage the human body can bear is only 36V, so will the human body be harmed by accidentally touching the mosquito swatter with the working voltage of 2200v? After studying the circuit diagram of the mosquito swatter, Mr. Liu explained its working principle to the editor. "The mosquito swatter is different from the high-voltage electricity on the transmission line. It increases the voltage through the booster device. Although the voltage seems to be very high, the electric energy in it is very small. In addition, the device with the protective circuit has a very small current, so it will hardly cause harm to the human body," he saidMosquito swatter can kill mosquitoes, mainly because of the high voltage it produces when it works, which forms an electric field, which is attractive to mosquitoes and other small creatures. When the mosquito is adsorbed on the mosquito swatter, it is equivalent to a resistance, causing a short circuit to the circuit inside, and the current will pass through it instantly. Such a weak current is fatal to mosquitoes, but there is no sense of contact with human body, and generally qualified products will have protective circuits inside, which can protect human body, so it will not cause harm.

　　The normal use of mosquito swatter is safe for human body. The mosquito swatter is a low-voltage power supply, similar to the mobile phone charger that people usually use, which is converted into high-frequency voltage through electronic circuit. Now, the mosquito swatter on the market is generally recharged, safer than the electric one, and generally no danger occurs. But it is also related to human conditions. People with heart disease should be more careful when using it. If they accidentally get electric shock, they should ask 120 for help in time.

　　In addition, pay attention to product quality when purchasing mosquito swatches, and select qualified products produced by regular manufacturers. Do not use the charging mosquito swatter when the power supply is connected. In case of aging of components, do not contact with human body when power is on. In order to ensure safety, replace new products in time.