They are teaching me that in a seires circuit the current through each component is the same but that makes no sense to me.
If my power source can only source 200ma and i hook up 10 LEDs each operating at , just for argument sake , 100mA , then I will not light more then 2 right?
measure the voltage across either resistor, divide by the resistance of that resistor, and this will be the current through each of the four components.Don
The how-to part. This should work with any number of parts in serial, yes?
Depends on what you mean by "parts". For any series wired resistors it will. However if there are LEDs in the series string their voltage drop remains constant regardless of the actual forward current flowing through them.
It doesn't matter what is in series, there could be marshmallows (as long as they conduct electricity), if you determine the current through any of the resistors using Ohm's law for that resistor then you also know the current through the other parts, including the marshmallows.