Electric motor. Demonstration model HG0071
This model is a perfect visual aid for demonstrating how the DC electric motors work. This device is made of steel and it is mounted on a stable base. It works freely and quietly. Equipped with two banana sockets for connecting a 2 to 4 V power source. • size.: 8.8 x 8.5 x 10.4 cm • material: plastic, metal • till stock last
Electric motor. Demonstration model QH0035 • size: 9 x 6 x 27 cm
100 Ohm resistor HG0150
The resistor is a simple device allowing to regulate the current and voltage. It has a solid metal case. The contact elements with the slider are made of copper- plated graphite. This device ensures good linearity. The scaled graduation from 0 to 100 provides precision.
• 28.5 x 14 x 9.5 cm; dia. of the ceramic cylinder: 4.7 cm; weight: 1.2 kg; max voltage: 380VAC, 400VDC; resistor tolerance: +- 10%; insulation resistance: >3x109 ?; grounding resistance: < 0.1 ?; power: 160VA; amperage: 1.25 A; electrical resistance: 100? • till stock last
Block Circuit Board HG0005 A demonstration set of electric circuits. • size: 36 x 36 x 5.5 cm
Wimshurst machine BZ8002 • creates lightning 6 cm long • dim of the base: 29 x 18 cm, H 34 cm
Electrostatic pendulum QH0029 • 2 pcs; H 30 cm; till stock last
Induction coils QH2410
Van de Graff generator HG0008 Set includes: • a conical and a spherical conductor with a spike and a stand, a spherical conductor with an insulated handle, an electrostatic mill, a brush • manual drive • size: H 74 cm, dome ø 26,5 cm
An aid to explore electromagnetic induction and explain how a transformer works. The primary coils is made of enamelled copper wire of large diameter and very low resistance (ca 0,5 ohm). The secondary coil is wound with fine enamelled wire with resistance 100 ohm. Each coil has two 4 mm sockets. • size: 21 x 15 x 23 cm
Electromagnet QH2411
The electromagnet consists of a coil of wire wrapped around a ferromagnetic core in an open magnetic circuit. On the outer layer there are a few rubber coils to indicate the winding direction. The terminals allow external devices to be connected in series or in parallel. The electromagnet can present the relationship between magnetism and electricity. It induces a magnetic field when electric current is passed through it. • size: 15 x 12 x 3.5 cm
588
Made with FlippingBook Proposal Creator