Lots of time I’ve heard about electricity things like: the one that kills you is the current, don’t worry about large voltages (tasers for example have thousand of voltage). But using Ohm’s Law, if the voltage is big, the current is big. Then why it’s said that about current?
In: 4
Voltage = Current * Resistance (V=IR) So current and voltage are inversely related.
That being said, current (I) is the actual movement of charge (electricity through the medium, but it the wire or your body) so more current is bad.
When you get shocked, you are reducing the resistance of the electric circuit and often shorting electricity to ground. Your body offers very little resistance in comparison to many electrical devices so all the electricty goes through your body. If you make R really small in the equation above, and voltage is constant, current has to get bigger to compensate to make this law true.
The voltage in question really doesn’t matter when R is small, you are going to get hit with enough current to give you a serious zap.
Latest Answers