Have always wondered this.
Why can I touch a 7VDC 140A system with no problems, but 120V with less than a mA can kill?
In: Physics
Because the amount of current that passes through you when you are being shocked is directly proportional to the amount of voltage you are being shocked with. You can grab the posts of a 12v car battery with wet hands and nothing will happen even though it’s capable of delivering 900 amps, if you do that with a wall outlet at 120v you would be dead even though the circuit breaker trips as 20 amps; the higher voltage will force more amperage through your body making it more lethal.
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