5 Electricity & Magnetism

Light bulb with a capacitor

The power source can be a power supply, Genecon generator or battery pack.
Catalog: 
5C30.30
Location: 
Ca4
The Genecon hand cranked generator is used to charge the 1 F capacitor and then discharged through a bulb. It takes a long time indicating a time constant.

Electroscope in a cage

Catalog: 
5B20.30A
Location: 
23-3
Faraday's electroscope in a cage

Scotch Tape Electrostatics

The dowel is color coded red and green. The tape is color coded with a wet erase
Catalog: 
5A10.151
Location: 
Scotch tape is used to demonstrate electrostatic principles.

Back EMF Inductance Spark

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

Gold Leaf Electroscope

Catalog: 
5A22.30
Location: 
21-3
Gold leaf electroscope

Radar Magnet

The aluminum bar and brace are used with a twist to remove the keeper. The first
Catalog: 
5G10.10A
Location: 
Do3
Powerful permanent magnet.

Surface charge density

Catalog: 
5B30.12
Location: 
23-3
Long closed cylindrical shape

Braun electroscope

The Braus's electroscope. The needle deflects when a charge is near or touching
Catalog: 
5A22.10
Location: 
23-1
The vertical needle will rotate proportionate to the amount of charge placed at the top. Various accessories can be attached to the banana plug at the top; A flat plate, a conductive ball, and a Faraday ice pail can be connected. It can be back lit usin

LR time constant on a scope

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

Levitation Using Permanent Magnets

The many parts to the Levitron demo are shown here.
Catalog: 
5H20.20C
Location: 
Cc4
A spinning magnet made by Levitron levitates over a permanent magnet.

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