Overhead Magnetic Field Setup
Magnetic Field Lines - Single Wire
Magnetic Field Lines - Solenoid

 

Magnetic Field Lines - Single Loop
Magnetic Field Lines - Toroid
Toroid Demo

 

Code Number: 5H15.10

Demo Title: Overhead Electromagnets

Condition: Excellent

Principle: Forces & Fields Around Current Carrying Wires

Area of Study: Electricity & Magnetism

Equipment: 

6 V DC 30 A Power Supply, Overhead Induction Wire Configurations (3), and Iron Filings.

Procedure:

The three overhead demos are meant to be connected to the 6 V, 30 amp power supply.  Use the heavier wires as indicated as they get quite warm.  Be careful of the hot ends.  Turn on the power supply and sprinkle on the iron fillings.  Turn off when done as you are direct shorting the power supply.

The "dryer vent" toroid is useful as it will allow you to measure the magnetic field as a function of inner and outer radius of the coil without allowing the inner parts of the coil to short out.

References:

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