5 Electricity & Magnetism

Forces on an Electron Beam - e/m - Video

Catalog: 
5H30.21B
Location: 
3-1
Cinema Classics: Electromagnetism: Electrons in a Magnetic Field. Helmholtz coils around a cathode ray tube deflect electron beam through rarified hydrogen gas. Beam makes a complete circle. Parameters are measured so the charge to mass ratio of the electron can be calculated.

Neodymium Spheres

The gold plated neodymium spheres can be arranged in many ways.
Catalog: 
5G10.13
Location: 
Cb3
15 gold plated neodymium spheres

RLC - phase difference

In a RL circuit the current lags the voltage. The top is the applied voltage. Th
Catalog: 
5L20.10C
Location: 
Df2
RLC phase difference switching capacitor and inductor.

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.

Wimshurst

Catalog: 
5A50.10A
Location: 
22-3
Wimshurst machine

Hysteresis of a iron-core toroid.

Sargent-Welch toroid.
Catalog: 
5G40.10C
Location: 
Cb4
The Sargent-Welch toroid is used to show a typical hysteresis curve of an inductor/transformer with a ferromagnetic core. When setting this demo up follow the schematic shown, however, values do not need to be exact in order to achieve very good results. This demo also works well with a broad range of frequencies (saw tooth signals are best), just adjust R3 to achieve the desired trace pattern.

RLC - resonance

Resonance is achieved when the bulb lights.
Catalog: 
5L20.20A
Location: 
Db3
Resonance app w/long neck light bulbs

Pinwheel

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

Jumping ring

Catalog: 
5K20.30A
Location: 
Da1

PASCO Ring Launcher.

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