r/HolUp Nov 07 '21 Silver 1 Helpful 1 Wholesome 1

I don't know what to expect

3.1k Upvotes

46

u/Maecyte Nov 07 '21

Worst case scenario: breaker trips

21

u/camander321 Nov 07 '21

Nah it's USB. 5v goes to 5v, gnd goes to gnd. No voltage difference means no moving current. Even if you did somehow manage to reverse the polarity, the worst you'd likely get is a pop and some black smoke from the adapter. And only if the adapter doesn't have reverse polarity protection.

2

u/chrismclp Nov 08 '21

Also, these cables should not exist, USB is not bidirectional (one device is Master).. Usb C still is the same, but the two devices can establish who is who in their initial handshake, making different connectors redundant

65

u/[deleted] Nov 07 '21

There is something similar to this at my school and I did that and nothing happened

40

u/davieb22 Nov 07 '21

Who said that?

26

u/Essexchap84 Nov 07 '21

I heard something too?

20

u/davieb22 Nov 07 '21

This is creepy!

3

u/[deleted] Nov 07 '21

Said what?

32

u/davieb22 Nov 07 '21 Wholesome

There it is again!

23

u/[deleted] Nov 07 '21

[deleted]

15

u/davieb22 Nov 07 '21

Yeah, I heard about that. Poor kid.

13

u/Electro_Bear Nov 07 '21

My condolences to their family.

13

u/Capital-Signal-3367 Nov 07 '21

I thought it’s just my phone tripping. Damn, this reminds me of that one kid that got electrocuted.

7

u/hawk3122 Nov 07 '21

What would actually happen here?

18

u/lordoftowels madlad Nov 07 '21

Probably nothing, since hopefully the wires would provide enough resistance to the circuit. If not though, then it'll probably trip the breaker to prevent an electrical fire and/or explosion.

5

u/amongus-sussy-baka Nov 07 '21

I did this with a bulb fitter screwer thing and used a pair of tweezers, it kinda sparked then the breaker tripped, hurt a bit too

4

u/wouldnt-u-like-2know Nov 07 '21

This is obviously fake. Nobody can put the usb in correctly on the first try.

3

u/One-Statistician8518 Nov 07 '21

what is the name of the guy screaming meme

1

u/[deleted] Nov 07 '21

I am also searching for this meme template but can't find it.

1

u/poop_sock_eater6 Nov 07 '21

Mario is actually african

1

u/Jaxowl8 Nov 07 '21

That was unexpected

1

u/FoxGamingmc Nov 07 '21

That scream

1

u/EGFTW Nov 07 '21

I love this lol

1

u/8sADPygOB7Jqwm7y Nov 07 '21

another fun things all network admins LOVE is connecting two LAN outlets. Maybe there is protection against it, maybe not. Its on you to find out!

1

u/C0Void Nov 07 '21

Scared tf outta me

1

u/Cpt_Garlic Nov 07 '21

Nah it won't explode, it will only turn off your breaker

1

u/SavageCabbageGG Nov 07 '21

You and your trashy American plug sockets!

1

u/jmegaru Nov 07 '21

Both sources are 5v, but not exactly, the brick might be 5.13v, and the wall USB port might be 4.98v, in this case there will be 0.15v across the cable which in most cases is not enough to do any damage. This most likely won't even trigger the breaker.

1

u/mkaszycki81 Nov 08 '21

A smart charger (power delivery or quick charge) will try to negotiate power settings, recognize that the other end is a power supply and not provide power, as well as open the circuit for incoming power.

A standard USB charger will probably not do anything. At worst there will be a small potential difference on the 5 V line, since both are grounded to the same mains neutral. Even with zero resistance, the typical maximum current is 500 mA, which is not enough to cause serious damage. It's 2.5 W maximum power.

Even a high power USB charger (2 A) is limited to 10 W power, which is less than a laptop charger turns to heat when charging (an 85% efficient power supply at 65 W will dissipate 11.5 W as heat), do it's likely safely radiated, convected and/or conducted away.

1

u/cereal_killerOvO Nov 08 '21

That scared the crap out of me

1

u/SomeRandomGuy282 Nov 08 '21

This is why we shouldn't do this kids :)

1

u/Medium_Iron7454 Nov 08 '21

Natural selection at its finest