The spark through the air from a discharging Van de Graaff is bluish in colour, just like a more powerful lightning flash.
Something went wrong, please try again later.
Practical physics website always has great ideas for carrying out experiments and will be very useful to anyone using the Van der Graaff for the first time.
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.
£0.00