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Why does AC voltage gives a electric shock and DC sources like car battery do not?
Wiki User
∙ 12y ago
The thing that determines whether you get an electric shock is the voltage. whether the source is AC or DC is not determinant. Car batteries are usually 12v, which is not sufficient to drive a current through your skin. The voltage of Mains electricity at 110 or 220 volts on the other hand is easily high enough to give you a jolt. The fact that AC voltages are conventionally stated as RMS (a kind of average) means that the actual peak voltage will be higher still.
Telephone lines carry around 90v DC when a call is incoming, which can also give you a shock.
I have heard that DC is more dangerous than AC because DC tends to cause your muscles to contract, so that you grip the source, whereas AC tends to throw you off. I'm happy to say that I don't have first hand experience to confirm this!
Wiki User
∙ 12y ago
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