Build the circuit yourself: place the equipment on the bench and wire it up, including the voltmeter.
The test wire is already taped to its metre rule — your job is to wire the rest of the circuit around it. Drag equipment onto the bench and arrange it however you like. Drag from the small dots on each instrument to wire up the circuit yourself, including the voltmeter. Everything here also works by clicking: pick an item, then tap it again to place it; tap one terminal, then another, to wire them.
Close the switch before taking a reading.
In a real lesson this is built for you and left alone. It is adjustable here so you can see what each part does.
The standard choice: its resistance barely changes even when it warms up.
is in series with the wire.
No readings yet. Close the switch, then press Record reading. Take three repeats at each length, work out R = V ÷ I yourself, then calculate the mean.
Your line of best fit appears once you have plotted two lengths.
Plot at least two lengths and draw your line of best fit to analyse your results.
AQA GCSE Physics Required Practical — interactive simulation.