Product details

Coil in the AC circuit with Cobra4 Xpert-Link

Coil in the AC circuit with Cobra4 Xpert-Link

Item no.: P2440464

  • Description
  • Scope of Supply
  • Downloads and Documents


The coil is connected in a circuit with a voltage source of variable frequency. The impedance and phase displacements are determined as functions of frequency. Parallel and series impedances are measured.


  • Intuitive, touch-optimized software that controls all devices simultaneously
  • Simplified implementation: all pre-settings already prepared
  • Easy frequency setting thanks to digital function generator
  • Fast and easy experimenting simply by switching components
  • Impedance will be computed in real-time
  • Further experiments in electricity and electronics can be performed with the equipment


  1. Determination of the impedance of a coil as a function of frequency.
  2. Determination of the inductance of the coil.
  3. Determination of the phase displacement between the terminal voltage and total current as a function of the frequency in the circuit.
  4. Determination of the total impedance of coils connected in parallel and in series.

What you can learn about

  • Inductance
  • Kirchhoff´s laws
  • Maxwell´s equations
  • a.c. impedance
  • phase displacement

 Operating system-independent software included. Computer not provided.

Document     Filesize
p2440464e.pdf Experimental Guide, English 1.44 MB

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