Coil in the AC circuit

Principle

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.

Benefits

• 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

Tasks

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.

Learning objectives

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

 Operating system-independent software included. Computer not provided.