In the accompanying material

- The teacher's manual is didactically prepared and suitable for immediate use.

- All student worksheets are available as editable Word versions for free download.

- The experiments are enriched with a list of materials, instructions for carrying them out, evaluation and tips for you as a teacher. QR codes for internal differentiation, hint boxes, formula support and many 3D illustrations offer individual help to the learners.

Topics that are additionally covered

- Magnetic fields of current-carrying conductors and coils

- Induction in coils

- Generator

- Transformer

- Lenz's rule

- Delayed switch-on process with parallel connection of L and R, switch-on and switch-off processes with coils

- Impedance

• 1 - The magnetic field of a solenoid

  experiment "The magnetic field of a solenoid"

  A compass is used to study the magnetic field of a coil with 8 turns caused by an electric current (2 A).
  The evaluation also addresses the influence of the Earth's magnetic field on the observation.

  

  
  
• 2 - The electromagnet

  experiment "The electromagnet"

  The influence of the coil parameters winding number, current and permeability on the strength of the magnetic field is qualitatively investigated. The strength of the magnetic field is assessed according to how strongly an iron sheet strip is attracted to the upper end of an I-core located in the coil.

  

  
  
• 3 - Electromagnetic induction

  experiment "Electromagnetic induction"

  In four small sub-experiments, it is investigated how the highest possible voltage can be induced with permanent magnets and a coil.
  The amount of the voltage is determined by the deflection of a electroplating or multimeter directly connected to the coil.

  

  
  
• 4 - Generating an alternating current

  experiment "Generating an alternating current"

  A rotatable permanent magnet is rotated in front of a coil. The AC voltage generated in the coil is supplied with a galvanometer directly connected to the coil.

  

  
  
• 5 - The transformer

  experiment "The transformer"

  In an unloaded transformer, primary and secondary voltage are measured with two multimeters.
  In the evaluation, the legal relationship between the measured voltages and the number of turns of the coils is independently discovered.

  

  
  
• 6 - Oersted’s experiment

  experiment "Oersted’s experiment"

  A compass is used to study the magnetic field of a copper wire caused by an electric current. In addition to the classical findings from the Ørsted experiment, the disturbing influence of the Earth's magnetic field on this experiment is also addressed.

  

  
  
• 7 - Lenz’s Law

  experiment "Lenz’s Law"

  A bar magnet is quickly moved into a free-hanging aluminum ring. Subsequently, the observations are traced back to the law of induction and Lenz's rule.

  

  
  
• 8 - Self-induction

  experiment "Self-induction"

  The influence of a coil on the switch-on and switch-off process is observed in simple circuits of switches, lamps and LEDs.

  

  
  
• 9 - The impedance of a solenoid

  experiment "The impedance of a solenoid"

  With a function generator, the inductance with and without iron core is indirectly determined via a measuring resistor.

  

  
  

• 6 × Needle support with plug
• 6 × Coil with 1200 turns student type
• 6 × U-and I-core with clamp screw, student type
• 1 × Bulb, MES, 4 V/1 A clear set of 10 pcs.
• 6 × Short circuit ring, 40 mm
• 6 × Crocodile clip, bare
• 6 × Electrode support on plug
• 6 × Magnet bar/brass bearing AlNiCo, 72 x 60 x 6 mm
• 2 × Copper wire, supple 1,5mm(450 mm long)
• 1 × Plastic case ca.540x450x150 mm
• 12 × Crocodile clip with 4 mm plug
• 1 × Sewing thread, 100 m
• 18 × Magnet rod, AlNiCo, 23 mmwith red-marked northpole
• 1 × Welding strips, 10 pcs.
• 6 × Coil with 600 turns student type
• 1 ×
• 6 ×
• 6 ×
• 1 ×
• 1 ×
• 6 ×
• 6 ×
• 6 ×