So why would a Series Circuit that have 5 Bulbs be Dimmer then the Same Circuit, but with 1 Bulb?

-So in a Series Circuit, the Potential Difference is Shared amongst the Components. -The Single Bulb will have the Suppliers Potential Difference, as it Doesn't need to be Shared with any other Components, because they aren't any. -The 5 Bulbs Divide the Potential Difference, meaning they will have Less Potential Difference then the Single Bulb.