Review health and safety in Edexcel A-Level Physics practical work through capacitor precautions, circuit handling and risk-management statements.
Two identical capacitors were connected in series and charged. They were then discharged through a resistor and ammeter.
A student investigated how the current in the resistor varied as the capacitors discharged.
State one safety precaution the student should take.
Ensure the working p.d. is not exceeded
Or
Ensure the capacitors are fully discharged after the experiment
[Accept any other appropriate precaution]
[Accept reference to electrolytic capacitors]