5J Inductance

Back EMF Inductance Spark

When the touching alligator clips are pulled apart there is a big spark.

Back EMF Inductance Spark

Catalog: 
5J10.20A
Location: 
A current of 10 to 20 amps flows through the wire when the alligator clips are touching. There is an internal resistance of about half and ohm. When the wires are pulled apart a big spark occurs.

LR time constant on a scope

The stranded core made up of many insulated rods reduces Eddy currents and has t

LR time constant on a scope

Catalog: 
5J20.10A
Location: 
Channel A of the oscilloscope is across the signal generator and channel 5 is across the inductor. The waveform varies with the changing time constant.

RLC Ringing

This RLC circuit allows the inductance to be varied by inserting an iron core. C

RLC Ringing

Catalog: 
5J30.10
Location: 
See parts
A square wave source causes ringing in an LCR circuit. The capacitor and inductor can be varied separately.