Electromagnetism & Induction

VE2.1.1.1
Electromagnetism & Induction
Electromagnetism & Induction

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Description

The experiments are carried out using the STE plug-in system Electricity/Electronics.

Objectives

  • Recognition of basic physical principles
  • Implementation of electrical circuits according to circuit diagrams

Practically all electrical machines generate torque and forces from the interaction between magnetic fields and electric current. The transformation of electricity by transformers also requires magnetic fields which change over time. Student experiments on electromagnetism and induction therefore form the essential physical basis for understanding electrical machines.

The equipment set incorporates student experiments which can be carried out in a laboratory safely using safety extra-low voltage. Experiment instructions are contained in a manual in either printed or digital form.

The target group is made up of students in general or vocational education. The experiments are designed as an introduction at a simple level of understanding.

For more advanced work, the following sets are recommended:

  • E2.1.1.2 Three-phase transformers
  • E2.1.1.4 Generators and motors

Topics

  • Circuits, conductors and insulators
  • Change-over/two-way circuits
  • AND and OR circuits
  • Measurement of current and voltage
  • Ohm's law
  • How the resistance of a wire depends on material, length and cross section
  • Distribution of voltage along a current-carrying wire (potentiometer)
  • Resistors connected in series and parallel
  • Batteries connected in series and parallel
  • Terminal voltage and internal resistance of a voltage source
  • How resistance of a wire depends on temperature
  • Fuses, bimetallic switches, thermostats
  • Power and work associated with electric current
  • Magnetic effect of electric current
  • Current carrying conductors in an magnetic field
  • Magnetic field of a coil
  • Soft iron instruments/magnetic relays/buzzers/speakers
  • Electromagnetic induction
  • Transformers
  • Current and voltage transformation
  • Self-induction by a coil
  • AC generators, synchronous motors
  • Coils and capacitors
  • DC resistance and AC impedance of a coil
  • Capacitors in DC and AC circuits

Components of equipment sets

1 207133S Science Lab Electrics EL3 (Set) LD
1 207134S Science Lab Electrics EL4 (Set) LD
1 207135S Science Lab Electrics EL5 (Set) LD
1 524005W  8  ** Mobile-CASSY 2 WiFi LD
1 521487  8  ** AC/DC power supply PRO 0...12 V/3 A LD
1 522621  4  ** Function generator S 12 LD
1 524446  4  ** Relay M LD
1 524436  8  ** Magnetic field sensor M, ±100 mT LD
1 524438  8  ** Voltage sensor M, ±30 V LD
1 51055  4  ** Direction-finding compass LD
Manuals:
1 520713  4  LIT: LP3 Science Lab Electricity, digital LD
1 200310  4  LeyLab LD
Additionally recommended:
1 50507  4  * Bulbs, 4 V/0.16 W, E10, set of 10 LD
1 50508  8  * Bulbs, 12 V/3 W, E10, set of 10 LD
1 50511  4  * Bulb 2.5 V/0.25 W, E10, set of 10 LD
.
1 55042  4  * Constantan resistance wire, 0.35 mm diameter, 100 m LD
1 55046  4  * Chrome-nickel resistance wire, 0.25 mm diameter, 100 m LD
1 55047  8  * Chrome-nickel resistance wire, 0.35 mm diameter, 100 m LD
1 55051  4  * Iron resistance wire, 0.2 mm diameter, 100 m LD
.
1 610010  8  * Laboratory safety goggles, Focomax LD
1 6729650  4  * Copper(II) sulfate solution 1 %, 50 ml LD
GHS09 H411
1 6735700  4  * Sodium chloride 250 g LD
1 6747960  4  * Sulfuric acid, diluted, 0.05 mol/l, 1 l LD
1 6753410  4  * Water, pure, 5 l LD
.
2 500621  4  * Safety connecting lead 50 cm, red LD
2 500622  4  * Safety connecting lead 50 cm, blue LD
2 500624  4  * Safety connecting lead 50 cm, black LD
2 500611  4  * Safety connecting lead, 25 cm, red LD
2 500612  4  * Safety connecting lead, 25 cm, blue LD
2 500614  4  * Safety connecting lead, 25 cm, black LD
.
6 647003  8  * Lid for tray LD

Articles marked with ** are additionally required.

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

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