If you used a magnetic phone charger while it was plugged in and dropped it in water while you were in the bath, would it electrocute you?

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NO, I am NOT planning on trying this.

I watched on the news about [a girl who was electrocuted after using her phone while charging in the bathtub and it fell into her bath.](https://www.youtube.com/watch?v=zg6nPthiuLs)

This made me wonder if it would also happen with a magnetic phone charger. Or would it only happen with a phone charger that connects inside the charging port?

FYI, I am talking about a magnetic phone charger like this one, while it is plugged in and actively charging: [https://www.apple.com/shop/product/MHXH3AM/A/magsafe-charger](https://www.apple.com/shop/product/MHXH3AM/A/magsafe-charger)

This question might seem dumb, but some of us aren’t well-versed in this topic. Sorry if it’s a dumb question. I legitimately don’t know.

In: Engineering

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Anonymous 0 Comments

So… here’s a simple (and imperfect) way to think about volts and amps. Volts is like the speed of a moving object. Does speed kill? Well… yes… but a cotton ball hitting you at 100mph will do far less damage than an equally-sized metal ball at 10mph. So, in this analogy, amperage is the weight of the object.

Cell phones using both low voltage (5V — although chargers can be higher) and very low amperage (0.5A). You can look-up the specifications for the version of USB you’re using. “Every normal USB-C cable must support at least 3 amps of current and up to 20 volts for up to 60 watts of power according to the USB PD specification. Cables are also allowed to support up to 5 A (with 20 V limit up to 100 W of power).”

TL;DR the “juice” coming from a charging CABLE (not the thing that supplies power to the cable) should be harmless. OTOH, that brick/inverter/etc is converting 120VAC (typically at 10A-15A) to DC. So… yeah, that’s a bit more dangerous. Well, that’s true in the USA in most residential settings, at least.

I’m frankly surprised that a bathroom outlet doesn’t have a GFCI outlet at least on the same circuit. I wouldn’t want to “test” this… but, in theory, that GFCI SHOULD break the circuit (and prevent death).

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