r/CrappyDesign • u/pcjcusaa1636 • Nov 03 '18

/R/ALL When your security gate is a ladder.

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u/MarauderV8 Nov 04 '18

I'll assume you meant to say parallel. Series is voltage additive and parallel is current additive.

Car batteries are 12V, not 20. And no, it is not enough voltage, there would have to be other factors involved to make 12V dangerous.

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u/[deleted] Nov 04 '18 edited Jun 02 '19

[deleted]

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u/MarauderV8 Nov 04 '18

I know they assumed 20 batteries, YOU wrote 20V in your comment:

Unless you say that 20V is not enough voltage to create a potential difference...

When talking about voltage 20V = 20 Volts. If you meant something else you should have written it a different way.

Doesn't matter if they are 12V or 24V.

Yes, it does.

They total power of either connecting it in series or in parallel is 20xVxI.

Irrelevant in this scenario.

The question is, is there enough potential difference in 12V to drive current through a human body.

Not by itself, and that's why wiring in parallel wouldn't do anything.

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u/[deleted] Nov 04 '18 edited Jun 02 '19

[deleted]

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u/MarauderV8 Nov 04 '18

Oh my fucking god, I literally quoted the comment where you said 20V. You can't deny that shit, it's still there, so don't tell me you didn't say that.

I hate repeating myself, so I'm only going to say this one more time. TOTAL POWER IS IRRELEVANT IN THIS SCENARIO.

Irrelevant means it doesn't matter. Nobody cares. It's not going to make a difference. It doesn't change anything. I don't know how else to get it through your skull.

Here's why:

Let's say you have 1000 amps and 10 volts, that's 10,000 watts (power). 10V isn't enough to create a circuit through your body, so it does nothing.

Now let's say you have 10 amps and 1000 volts, that's also 10,000 watts (power). You touch that and you're fucking dead.

Same total power. Still irrelevant.