"I've heard of powerful wizards that can cast lightning-spells, sir, but I don't know how someone would make lightning without magic. ...Is it safe?"

The idea that someone would want to spend a lot of time chopping wood also sounds pretty unlikely, but maybe the town mayor doesn't like it when people complain or something? Or maybe he's just really weird, that's also possible.

"It's all contained, in the walls and the light fixtures and whatever else needs it.  The bare wires definitely wouldn't be safe to touch or have around, no.  There are outlets in the walls to plug electrically powered devices into, but they're made safe too, you can touch them, just don't push metal into them.  What else... Don't cut any wires, don't disassemble anything that's powered, don't get anything electrical wet or it might shock you through the water.  If anything electrical catches fire, don't try to put it out with water, either.  ... I've never had anything electrical catch fire, to be clear, it's just the sort of thing that's important to know just in case."

"I can't really explain how electricity's made - they'll go over it in school, I think, maybe it'll make sense then - but for example, you know how rubbing wool cloth against itself will generate little bits of electricity, so it shocks you a little when you touch it, and you can see the spark if you do it in the darkness?  Of course that's not enough be useful, but it's that sort of thing - normal physical processes turning out to generate electricity for some reason, and then people optimizing them and scaling them way up and making sure it's a standard amount of electricity that's going in the wires.  I think the real thing they do involves wire coils and rotating magnets, but it does rather go over my head."

...That sounds like magic, just using wool or wire or magnets, whatever those are, as a component for casting the spell.

"What's a magnet?"

"A sort of weird rock that draws iron to it - I'll show you some, they're interesting.  I think they mine them out of the ground?  I'm not sure."

Magnets are absolutely going to seem like magic to her.  They do seem like magic, children always think so.  So much technology is based on weird things he can't explain and would have never encountered if they weren't technologically useful - which makes sense really, because humanity went looking for the most useful possible materials to do something completely new with, and why would those be commonplace? - but it sure isn't making it easy to explain how they're not magic to someone without any of that context.