5 Electricity & Magnetism

Magnet & Iron Filings - Video

Catalog: 
5H10.30C
Location: 
3_1
Cinema Classics: Magnetism & Magnetic Fields: Iron Filings. Iron filings are sprinkled over a horseshoe magnet and bar magnet to show field lines. A compass is moved around the bar magnet. An 83 ton electromagnet is shown. Students throw iron bars on it. Helicopter view of students lining up along field lines with the help of compasses.

Exploring RC time constants with oscilloscope

The time constant is much smaller as the gap in the capacitor is made wider.
Catalog: 
5F30.20C
Location: 
Cb2
PASCO large capacitor and a decade resistor box along with and oscilloscope show the RC time constant.

Eddy current levitation

CCTV is needed to show the levitating magnet to the class.
Catalog: 
5K20.40
Location: 
Da2
Rotating metal platform

Conductors and insulators - Video

demonstration image
Catalog: 
5A30.15B
Location: 
3_1
Video Encyclopedia :Aluminum and acrylic rods are mounted on a Braun electroscope. Bring a charged rod close to each rod.

Electromagnet - Video

Catalog: 
5G20.70C
Location: 
3_1
Cinema Classics: Electromagnetism: Electromagnets. A coil of wire connected to a dry cell is shown to attract iron weakly. When an iron core is placed inside the coil the attraction is greatly increased. Electromagnets are shown to work only when the current is on. Two D cells and electromagnet lift a man (Newton's Apple video).

Blinking Neon Bulb

Equipment layout for this demo.
Catalog: 
5F30.60A
Location: 
Cb2
An relaxation oscillator is made with a resistor, capacitor, and a neon lamp.

Dissectible transformer

A step down transformer has 400 turns on the primary coil and 200 turns on the s
Catalog: 
5K30.20B
Location: 
PASCO dissectible transformer There are 5 coils that can be arranged in many ways. The blue coil has 200 turns, the two yellow coils have 400 turns, and the two gray coils have 800 turns.

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.

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

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