## Series and Parallel Circuits

- Series circuits
- Parallel circuits

__Series Circuits__

Components in *series* are connected along a * single path* running around the circuit.

** Current, I:** The same current flows through all the components, and through each point in the circuit.

** Voltage, V:** This is shared between the components. There is a higher voltage across components with a greater resistance.

** Resistance, R:** The total resistance of components in series is equal to the sum of their separate resistances.

__Parallel Circuits__

In a *parallel* circuit the path splits at some point. This means that some current flows one way, and some the other.

** Current, I:** Whenever a charge flows into one junction, the same amount must flow out of it. This means that the current through the whole circuit is the sum of the currents through each separate component.

** Voltage, V:** This is the same across all components that are in parallel with one another.

## IV Plots

- What are IV plots?
- What does the gradient tell us?
- Recognising curves

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