Gold Leaf Electroscope with Scale
Gold Leaf Electroscope with Scale
Student's name
First and last name, and class if you know it. This goes on the pack label.
Pickup available at Mega DC – Tweed Heads South
Usually ready in 24 hours
The classic electroscope, with a scale so it measures rather than just moves
Aluminium case, 4mm socket, ground terminal, Teflon-insulated gold leaf support, and an internal scale on the rear glass. $70.00.
An electroscope answers one question visibly: is this object charged, and how much. Bring a charged rod near the top plate and the gold leaf lifts; the more charge, the further it lifts. Students see a quantity, not just an effect.
The scale is what separates this from a cheap one. A transparent scale on the rear glass wall, marked from 0 to 90 in steps of 10, lets a class record deflection rather than describe it. That turns a demonstration into an experiment with results you can plot.
Teflon insulation on the leaf support. That is the part that decides whether an electroscope holds a charge for a minute or for five seconds. Teflon is one of the best insulators available for the job, and it is why this one still works on a humid day when a cheaper instrument has already leaked away.
Two interchangeable electrodes: a disc top plate for induction work with a charged rod, and a metal hook for hanging or connecting. There is a 4mm socket and a ground terminal, so it wires into a circuit or an earth line properly.
One note: the supplier's scale is printed "0 to 90 C x 10 C" and does not say what the unit is. Almost certainly degrees of leaf deflection. We have asked them; do not build an assessment around the unit until we confirm it.