[ELI5] Why current can kill you “easily” but voltage not?

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I have encountered several articles and posts saying that what electrocute you and cause death is actually not the voltage but the current instead but is not clear to me how this works.

In: Physics

11 Answers

Anonymous 0 Comments

It’s more, the overall power.

Power is measured in Watts, and it’s voltage (volts) x current (amps)

Tasers, often use thousands of volts, but at very low current. They hurt, but they’re very rarely lethal. So it’s assumed that volts don’t kill.

Current, on its own, can’t kill you either.

If you touched something that can deliver 1000 A, but there’s only 0.1V there, it probably won’t even travel through you.

You need Voltage to push current through anything, since everything has resistance.

So you need both, a high enough voltage, and a high enough current. With enough of both, you’ll cook.

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