Electroscope Iron Needle
Product Code : JL-LE-10441
The Electroscope Iron Needle (SKU JL-LE-10441, Cat. No. JSS-412/05) is a metal leaf electroscope for electrostatics practicals. A metal plate with an attached metal leaf sits on an insulated bush inside a metal case with ground glass front and rear windows. An internal transparent scale lets students read how far the leaf deflects, so charges can be compared.
Specifications
Construction as listed:
| Product | Electroscope Iron Needle |
| SKU | JL-LE-10441 |
| Cat. No. | JSS-412/05 |
| Case | Metal, ground glass front and rear windows |
| Detector | Metal plate with attached metal leaf |
| Insulation | Leaf assembly supported on an insulated bush |
| Scale | Internal, transparent, 0 to 90 degrees in 10 degree divisions |
| Earthing | 4 mm earthing socket on the case |
Experiments with the metal leaf electroscope
It is used to show and compare static charge, for example:
- Detecting charge on a rubbed rod brought near the plate
- Charging by contact and by induction, then earthing through the 4 mm socket
- Comparing the size of charges from the leaf deflection on the scale
- Teaching the idea of like charges repelling, shown by the leaf moving away from the plate
Scope of supply and ordering
Each electroscope is supplied assembled in its case; please give the quantity, and the quotation confirms packing and lead time.
Frequently asked questions
How is the deflection measured?
On the internal transparent scale, marked 0 to 90 degrees in 10 degree divisions.
How is the electroscope discharged?
The case has a 4 mm earthing socket for connecting it to earth.
What does the name iron needle refer to?
It is the listed name of this electroscope, whose indicator is a special metal leaf attached to a metal plate.
Related products
Electrostatics and electricity apparatus is listed in our laboratory equipment range.
Request a quote
Ask for the price of the Electroscope Iron Needle on our contact page. Tender and project enquiries can be sent through the tenders page.
