Add all the resistance components
Then apply Ohm's Law
V= I x R

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​SERIES CIRCUITS

​Parallel Circuits

In a series circuit-
the current does not change throughout the circuit. The voltage changes across the components.
a) First find the total resistance
b) then find the total current
c) then find the individual voltages

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Let's try again!

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The parallel circuit is much more complicated
If you're interested
I can show you another time-
In a parallel circuit, the voltages across the components doesn't change, it's the current that does.

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​Summary

In a series circuit
-we need to add up the resistance of all the components and then apply Ohm's Law
-we know that the current DOES NOT split in a series circuit
-once the path is broken, the circuit doesn't work

Summary

In a parallel circuit we've learned that
-total resistance needs a formula and some flipping!
-voltage does not split, it is current that splits
-when one of the circuit paths is broken, the flow of electrons can use another pathway.