“The greater the jostling about of atoms within the conductor, the greater resistance the conductor offers to the flow of charge. For most conductors, increased temperature means increased resistance.”

MY simplified explanation:

When molecules get hot, they move around,

bumping into one another, right?

Now, imagine a hallway at school as being a huge wire.

The other students are the molecules in the wire and they’re moving around quite a bit.

You’re an electron trying to travel down the hallway or wire.

Well, you can’t walk down the hallway (or wire) without bumping into them. Sometimes, you might have to turn around and go around someone.

Now, imagine if it was COOL in that hallway…

Your fellow students would be moving at a slower pace,

and you’d be able to walk down that same hallway without bumping very many shoulders.

Make sense?

I hope that analogy helped…

Good luck in your studies,

~ Mitch ~