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Telegraph key, mounted on a solid plastic base, measuring 11cm x 5cm.
This ingenious device offers a practical and economical solution for light measurements in a variety of learning situations. Whether measuring environmental light or quantifying an optical experiment, this compact luxmeter meets the need. For most uses, the autoranging feature makes this a...
Friction Rods are 12"; long unless noted. Excellent for demonstrating static electricity
Discover how people communicated over long distances before the telephone was invented. The Morse code experiment kit is designed to show the principle of a telegraph. The kit consists of a "D" cell battery holder, a telegraph key, a miniature lamp with holder, and three connector cords....
This device can be used as a classic standard calorimeter or as an electric calorimeter. Made of aluminum and plastic, the calorimeter has a diameter of 10cm, height of 11cm, liquid capacity of 175ml, and a heat capacity of 25J/°C. Electrical requirements are 6V DC, up to 2A.
Compact analog multimeter offers popular features such as AC voltage, DC voltage, DC current, Ohms, measures capacitance and decibels, and comes with overload protection and diode test. Includes test leads and instruction manual. Operates on 2 AA size batteries (included).
The Electrostatics Kit is a collection of materials designed for students to investigate the creation of charges through friction between various rods and fabrics. Contents include: Hollow Glass Friction Rod (1) Glass Friction Rod, Half Ground (1) Ebonite Rod (1) String, 10' (1) Balloons (3)...
Connector cords are useful in various electricity experiments, as well as in many apparatuses that require connections to power supplies. All of our connector cords are made of 18-gauge insulated wire. These connector cords have alligator-clips on each end. Alligator-clip ends are useful for useful...
Helmholtz coils are useful for creating near-uniform magnetic fields or for cancelling out external magnetic fields, such as the earth’s. The field between the two solenoids is at its most uniform when the distance between them is equal to the radius of the solenoids. This can also be used with a...
Plastic Insulated Copper wire is 22 gauge, supplied in 100 foot rolls and available in three colors. Bare Nickel Chromium Wire is supplied in 4 ounce spools. Enameled Copper Magnet Wire is supplied in 4 ounce spools. Soft Bare Copper Wire is available in 4 ounce or 1 lb spools.
This handheld device provides a qualitative visual indicator of the conductivity of different solutions, acids or salts. Two brass probes can be touched to a solid substance, or immersed in a liquid, to show conductivity on green LEDs that range from 1 to 10. Each probe is 53mm long with a diameter...
A Wheatstone Bridge is a tool that can be used to determine an unknown electrical resistance within a circuit by comparing known resistances to the unknown resistance value. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene, nickel, and lead, which are known to the...
Copper Sheet, 12 x 12", 10mil/30 guage
Demonstrate key electrostatics concepts with this kit. Contains everything necessary to construct two flask form elctroscopes. Detailed manual included experiments using two electroscopes for positive and negative charge studies, and a Faraday's Pail experiment. Kit includes 2 Glass Flasks, 2...
Build your own series circuit using the handy Create-A-Circuit-Kit. It comes complete with a "D" cell battery holder, a knife switch, two miniature light bulbs, two lamp holders, and four connector cords. Instructions are included.