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Motor Principle Applications
A wire carries an electron current from west
to east in a magnetic field that runs south to
north. In what direction is the magnetic
force on the wire?
A bare current-carrying wire runs across a
lecture table.
How could you could find the direction of the
electric current?
How could you see the magnetic field?
Causes of Magnetism
Why is iron ferromagnetic?
What is a magnetic domain?
How does a magnetic domain cause
ferromagnetic materials to become
Describe a method by which magnetic
domains can be observed.
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