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Best answer: Probably. The Amazon Smart Plug was designed to work with most any product you have in your home but there are some exceptions and devices that shouldn’t be connected.

With 12/24V, the resistance is low enough that it can be done using copper traces on PCB. P=V^2/R, so the resistance needed to be increase by 100 times for 12 to 120V. The traces gets a lot thinner and longer.

It does seem to be an old electrician’s habit, never leaving the leads plugged into amps. Somebody commented on one of Big Clive’s videos about him doing that. Seems like a good habit to get into.

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Some heaters are a coil of Alloy wire cast in ceramic and then enclosed in a stainless steel tube. Basically a bad inductor, but still having the surge properties of one. Same with big boy halogen bulbs.

I don’t know about anywhere else, but in North America, power enters the home via two 120V hot and one neutral. The two 120V hot legs are out of phase with each other, and when combined, you get 240V. So, from the breaker panel, you can pull 120V or 240V, depending on the type of breaker you insert at a given position. Some large appliances (water heaters, central AC units, electric stoves, large power tools) are 240V in North America, but most everything else is designed for a single leg 120V feed. Then just to make things even more complicated, large industrial businesses often have three phase 480V for the really big equipment.

Isn’t welding the core kind of a bad idea as it will short the laminated plates and make it heat a lot?

In the case of Chinese relays and SSRs I double the amps and add 10% …. Ditto for Chinese switching regulators which put out everything but DC after they reach about 50-60% of their rated load

What we can say for now is that the new Corolla has taken a giant step forward, and that in terms of cabin quality and refinement, comfort and dynamic capability it is up there fighting among the very best. Likewise, you would hope, Toyota’s famed reputations for both reliability and customer service should continue to add credence for buying one.

This is the sort of topic where it wouldn’t be a great idea to be dismissive of textbooks and/or formal instruction. Often local power line crews will put on a safety demonstration at hamfests. No doubt they would do the same for the various builder/hacker/maker spaces

Considering the existence of deep subzero freezers, it would still perform better than a resistive element. Or have it draw the heat from the indoors and run some crypto miners to make up for it.

Actually, some places (notably Australia and the UK) go to 240V, and this is +/- 10%, so theoretically you could be seeing anything up to 264V supplied. However, the supply companies seem to have a “better high than low” philosophy, and my UPS tells me I am currently receiving 257V on a 240V line. I actually believe the UPS, as I’ve regularly seen this happen with test equipment on the line.