Magnetic Fields and Forces

OHP Magnetic Lines of Force

[S | t | ★★]
Bar magnet and/or various current-carrying wire configurations; sprinkled iron filings reveal the lines of force.
[In-Depth Description]

Dipole in a Magnetic Field

[M/L | t | —]
A suspended current-loop dipole experiences torques in a magnetic field provided by Helmholtz coils.

Magnetic Field of a Solenoid

[L | t+ | —]
A large compass is used to map out the field of a giant solenoid.

Magnetic Field of Current Loop

[L | t+ | —]
A large compass is used to map out the field of a giant copper loop.

Oersted's Experiment

[L | t+ | ★★★]
Five large compasses, placed around a vertical copper pipe, indicate the magnetic field when the current is turned on.
[In-Depth Description]

Magnetically Accelerated Axle

[L | t+ | ★★★]
Current carrying axle on rails experiences force from electromagnet.

Barlow's Wheel

[M | t+ | ★★★]
A copper disk, supported between two magnet poles, rotates when a DC current is passed radially through it.


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