Principle

A square wave voltage of low frequency is applied to oscillatory circuits comprising coils and capacitors to produce free, damped oscillations. The values of inductance are calculated from the natural frequencies measured, the capacitance being known.

Benefits


Quick, easy, and neat set-up

On-the-fly switching of the numerous induction coils for quick and easy experimenting

Easy frequency setting thanks to digital function generator


Tasks


To connect coils of different dimensions (length, radius, number of turns) with a known capacitance C to form an oscillatory circuit.

From the measurements of the natural frequencies, to calculate the inductances of the coils and determine the relationships between:



inductance and number of turns

inductance and length

inductance and radius.


What you can learn about


Lenz’s law

Self-inductance

Solenoids

Transformer

Oscillatory circuit

Resonance

Damped oscillation

Logarithmic decrement

Q factor