Product Overview
Electroscopes, Large Needle, Set of 2
A rugged electroscope excellent for demonstrations. The ultra-sensitive aluminum needle about 150 mm long pivots on an axle in a vertical position on a metal support rod which is insulated from the electroscope case by a plastic sleeve. The metal case tends to eliminate the unwanted deflections sometimes caused by charges residing on glass or plastic walls. The front and rear sides of the electroscope housing are of glass 170 mm in diameter to give good visibility and provide for shadow protection. The front glass window is transparent, and the back is frosted and has a scale printed on it to measure the angle of the deflection.
Friction Rods, Assorted Materials, Set of 7
With this set, students can learn about the triboelectric series, as well as charging by friction, induction, and conduction. Includes rods made of Nylon, PVC, Glass, Polystyrene, Acrylic, Ebonite, and Polyethylene. Size: 10-12 mm diameter x 150-170 mm length.
Friction Pad, Pure Wool
Pure wool pad for use with the electrostatic friction rods. Dimensions: approx. 250 mm x 240 mm. Bulk wool rolls are selected based on the fabric performance with the friction rods, so color may vary.
Friction Pad, Pure Silk
Pure silk pad for use with the electrostatic friction rods. Dimensions: approx. 250 mm x 240 mm. Bulk silk rolls are selected based on the fabric performance with the friction rods, so color may vary.
Electrophorus
For producing electrostatic charge by induction. Consists of a 15 cm brass disc with insulating handle and 4 mm plug on a 15 cm square plastic plate. With instructions.
Sphere Conductor
This conductive sphere can be used to store charge in electrostatic experiments and to investigate electric potential of a charged sphere. On an insulated stand rod and wide, stable base. A wire lead with the spade connector such as catalog Item No. G-974200 can be inserted and tightened between the insulated stand rod and the bottom of the sphere to connect it, for example, to a power supply or electroscope. The sphere is 95 mm in diameter and 200 mm tall including the base and stand rod.
Cylinder Conductor, Hollow, 2 Half-Cylinders
This cylinder conductor can be used for electrostatic induction experiments and to investigate the charge distribution of a hollow conductor. When two half-cylinders are in contact and a charged rod is brought near one of them they become charged by induction, the nearer one having a charge opposite that on the rod and the other like that on the rod. This can be demonstrated by separating the half-cylinders and testing the charge on each with an electroscope.
A wire lead with the spade connector such as the catalog Item No. G-974200 can be inserted and tightened between the insulated rod and bottom of the cylinder to connect it to an electroscope for induction experiments. The cylinder conductor is 60 mm in diameter, 160 mm long when combined, and 175 mm tall including the base and rod.
Leyden Jar, Dissectible
For storage of static electricity and demonstration of the basic principle of capacitance. A plastic jar with a metal insert and outer shell, both of which can be removed to show that the charge is on the surface of the plastic. The inner metal vessel has a hook shaped metal rod terminating in a metal sphere at the top for charging the Leyden jar. Once charged in assembled condition, the apparatus retains its charge even after disassembly and assembly. With instructions.
Proof Plane
For sampling the charge density on a charged conductor or transferring small charges from one body to another. A steel ball 14 mm in diameter is mounted on a 100-mm insulating handle made of plexiglass rod.
Discharger
For insulated charge transfer, for example between two electroscopes. The insulating handle is made of plexiglass rod approx. 135 mm long, and the discharger is made of steel wire with a diameter of 2 mm and about 260 mm long.
