BRAINCAKECurrents in Series Circuits
Any components placed in series where there are no junctions will have the same current through it.
The ammeter must always be placed in series with the component.
In a series circuit there is only one path for the charge carriers. Charge is conserved: it cannot be created, destroyed or piled up anywhere in the wire, so the charge passing each point every second must be the same all the way round. The current is the same at every point in a series circuit.
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Key terms in this lesson
- ammeter
- An instrument used to measure electric current, connected in series in a circuit, ideally with zero resistance.
More in Electrical Circuits
- Current Rule
- Currents in Parallel Circuits
- Voltage Rule
- Voltages in Series Circuits
- Voltages in Parallel Circuits
- Resistors in Series and Parallel
- Resistors - Combinations Question 1
- Resistors - Combinations Question 2
All 22 lessons in Electrical Circuits · All Edexcel AS-level Physics topics