How a Circuit Work

This is just a review…

An electric circuit needs two things so that it can work. One, it needs a power source. That’s something like a battery.

It also needs to be a complete circuit, a circle. There needs to not be an end. The electrons should be able to flow continuously without hitting and somewhere.

That’s why batteries have a top and bottom (+ and -), so the charge comes in one end and out through the other end. It becomes part of the circuit circle.