The role that electrical impulses play in the functioning of the nervous system is at the root of one of the main dangers from an electric shock. Nerves use electricity to transmit information. A sufficiently large dose of electricity can easily overcome the normal electrical charge of the nervou...
Electric current passing through the body, particularlyalternating currentat power frequencies of 50 Hz and 60 Hz, may disrupt the nervous system, causing muscular reaction and the painful sensation ofelectric shock. The most common reaction is to be thrown off the conductor as a result of the m...
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If an electrical accident(事故)happens, do you know what to do? It is important for teenagers to learn the rules of electricity safety. What’s more, they also need to know what to do when an electrical accidents happens. Yesterday, Tom saw his sister getting an electric shock(触电). He...
C.Shegotanelectricshock.D.Hermusclefromtheinsideofherbodyishurt.(2)Theunderlinedword"him"inparagraph2refersto ___.A.TomB.anadultC.thepoliceD.theteacher(3)HowdidTomknowwhattodowithanelectricalaccident? ___A.Helearntbyhimself.B.Histeachertaughthim.C.Hisparentstoldhimaboutit.D.Thepolicehelpedhimk...
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In essence, the mechanical parts of the shaker leave a signature in the electrical impedance, and an interpretation of this signature using a simple model allows for drawing conclusions about the properties of the shaker. The theory developed (which is quite general so that it is usable also ...
2. The Three Actions of Electrical Relays 1. The relay permits a small amount of electrical current to control high current loads. When voltage is supplied to the coil, small current passes through the coil, resulting in a larger amount of current passing through the contacts to control the ...
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Chung-Sook shakes off her shock and follows Mun-Kwang down the dark staircase. 75 INT. MANSION - SECRET ROOM - NIGHT 75 MUN-KWANG Babe! Babe! We get glimpses of the dark underground bunker as Mun-Kwang waves around the flashlight on her cell phone -- low ceiling, gray walls, a ...