Analysing Series & Parallel Circuits
Current
- In a series circuit, the current is the same for all components
- In a parallel circuit, the current is split across the different branches (or junction). The total current into a junction must equal the total current out of a junction
- The amount of current in each branch depends on the total resistance of the components within that branch
Potential Difference
- In a series circuit, the e.m.f of the power supply is shared amongst all the components in different amounts, depending on their resistance
- In a parallel circuit, the voltage of all the components in each branch is equal to the e.m.f of the power supply
Summary
- A summary of the current, voltage and resistance within a series and parallel circuit are summarised below:
Table of Voltage, Current & Resistance in Series & Parallel Circuits
