Capacitor Simulator for A Level Physics

Explore capacitor behaviour with an interactive circuit simulation.

What this tool shows

How charge and voltage build during charging
How current changes during charging and discharging
The effect of capacitance and resistance on the time constant
Exponential decay of voltage and current

OCR A relevance

Module 6: Capacitors
RC circuits
Exponential equations

Try these tasks

Double the resistance. How does the time constant change?
Predict the voltage after one time constant, then check.
Compare charging curves for different capacitance values.