[Kliment]

> I cannot imagine cooking with fewer than 3 rings.

You're allowed to own more than one standalone induction plate. And you're also allowed to position them freely over your work area :)

[emteycz]

You're not always allowed to put them into electric sockets and turn them on all at once, though. There's usually special electric wiring done to handle the load of electric stoves.

[dtgriscom]

In the US, at least, the standard is to have outlets every 4' (I think), and have the outlets alternate circuits. So, you plug into two adjacent outlets (not the same two in the same box, but adjacent boxes) and you'll be on different circuits.