thursdayfern

thursdayfern t1_j62rbzd wrote

Sure, but I didn’t say electricity flows through wires, I said it was a shorter path for electrons to travel.

Also I was joking, this is obviously not how electricity works, otherwise you totally would be able to charge faster this way.

I like that video a lot, but that guy primarily talks about electromagnetism and alternating current; neither of those are a factor in a lightning cable, or in his car battery/light bulb experiment. Those are both using direct current.

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thursdayfern t1_j627tet wrote

I had a feeling someone would bring up Ohm’s law, and that’s why I said “in practice” and not “in theory”, because you are correct, in theory a shorter cable means less resistance means faster charging.

In practice, a 1m usb cable has less than 1 ohm resistance; I would imagine the difference in charge time between a 1cm cable and a 2m cable would be measured in seconds.

Also yeah, MagSafe is relatively inefficient for charging, but it is one of the most efficient methods of wireless charging, if not the most efficient (because alignment magnets).

A longer cable wouldn’t change much at all in this equation. You can test this yourself with a usb c extension cable (assuming it supports the necessary PD standards).

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thursdayfern t1_iy62pkw wrote

I completely agree with this opinion.

My month old M2 MBA’s usb c ports feel mushier than the lightning ports on my 2016 iPhone SE or my 2016 iPad Pro.

I want usb c everywhere so it’s easier to connect everything together, charge anything anywhere, all that good stuff.. but I would hate for my phone’s charging port to be mushier.

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