2.4 Electricity 2.4.6 Electromagnetism, induction, Lorentz force
Self-induction when switching a circuit on
Transformer for student experiments
Function and Applications Principle A coil is located in a DC circuit. When the circuit is closed, the magnetic field of the coil builds up and generates a self-induction voltage which counteracts the increase. An incandescent lamp in the circuit lights up only gradually. Literature for this experiment as follows: TESS Physik Handbuch Elektrik/Elektronik 01169-01 German TESS Physics manual Electricity/Electronics 01169-02 English TESS Física manual Electr./Electron. 01169-04 Spanish P1356200
Coils for student experiments
U-core (07832-00) and yoke (07833-00) are laminated and composed of transformer plates. They are both put together to a closed transformer core with the clamping bolt (07834-00) and two reactance coils, for student experiments. Optionally available brass pins (07838-01) prevent slipping of the yoke. The yoke alone can be employed as an iron core for the reactance coils for student experiments, or in combination with the pressure part (07833-03) as an electromechanical functional model (e.g. solenoid valve, stamp mechanism). The ring conduit (07835-00) can be displaced to the U-core and is suitable for maximum-current melting experiments. U-core 07832-00 Yoke 07833-00 Compression element, for 07833.00 07833-03 Circular trough 07835-00 Brass pins, d 3mm, l 35mm, 2 pcs 07838-01
Fundamentals of electricity and electronics, 10 experiments with FG module
Function and Applications For student experiments with electromagnetism. Equipment and technical data ▪ ▪ ▪ ▪
Coil casings of shock proof plastic with two 4 mm sockets 19 mm apart. On cover coloured according to the number of windings. Coil flanges with printed symbol or winding direction. Suitable for U-core (07832.00), yoke (07833.00) and small notch bearing (07874.00).
Multifunctional and easy adaptable basic set for computer-based analysis of current and voltage characteristics, especially for very fast signal response (500 kHz) and dependance of frequencies for practicals and demonstration. The set contains everything for the performance of the following experiments:
Coil,8 turns 07828-00 Coil, 400 turns 07829-01 Coil, 800 turns 07829-03 Coil, 1600 turns 07830-01 Coil, 20000 turns 07831-01
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excellence in science 222
Function and Applications
Ohm´s law Characterics of semiconductors (Diodes, Transistors) Switch on behaviour of capacitors Switch on behaviour of coils Coil in AC circuit Capacitor in AC circuit