Circuits can work in different ways. Let's talk about two main types: series circuits and parallel circuits.

Series Circuits:

• In a series circuit, the current stays the same everywhere. This means that the current flowing through all parts is equal.
• If we add up all the resistance, we get the total resistance. So, it works like this: Total resistance = Resistance 1 + Resistance 2 + and so on.
• A big thing to remember is that if one part breaks, the whole circuit stops working.

Parallel Circuits:

• In a parallel circuit, the voltage is the same for all paths. This means that each branch of the circuit gets the same amount of voltage.
• When we look at resistance in parallel circuits, it's a bit different. The total resistance actually decreases. You can think of it like this: 1 over Total Resistance = 1 over Resistance 1 + 1 over Resistance 2 + and so on.
• The cool thing about parallel circuits is that if one path stops working, the others can still keep going. This makes them really handy for wiring in our homes.

So, in summary, series circuits are simpler, but parallel circuits offer more options.