5 Electricity & Magnetism

Charging by induction

The metal sphere is at the edge of the table so that the VDG can be rolled up to
Catalog: 
5A40.10A
Location: 
22-2
We have 5 metal spheres that can be charged or show induced charges.

Gold straw electroscope

Catalog: 
5A22.31
Location: 
23-2
Gold straw electroscope

Short a capacitor

When charging the voltage should be less than 150 V and the current will start a
Catalog: 
5C30.20
Location: 
Ca3
A 12000 pF capacitor is charged to 150v and then shorted.

Current - coupled pendula

The polarity can be reversed so that the coils swing toghether or out of phase.
Catalog: 
5K10.48A
Location: 
Cd3
Interconnected coils are hung as pendula in the gaps of two horseshoe magnets. Start one swinging and the other swings.

Pinwheel

demonstration image
Catalog: 
5B30.50A
Location: 
22-4
Place a pinwheel on a Van de Graaff generator.

Eddy current tube

Clamp the camera to the table since it is close to the edge.
Catalog: 
5K20.25A
Location: 
Cd5
Powerful magnets are dropped through a copper tube. They pass very slowly due to eddy currents.

Pith balls

Two types of pith balls on stands.
Catalog: 
5A20.20
Location: 
23-3
Pith balls on stands

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