Electricity and Magnetism Relationship
Would it be possible for electricity to alter magnetism?
It is very easy for electricity to alter magnetism.
A very common example is an "electromagnet". Wind a long wire in a neat
coil around any cylinder-shaped object. If you connect this coil to a power
source, perhaps a 6-volt lantern battery, you will have yourself a magnet
resulting from electric current. Just about every electric motor makes use
of such a device.
Another example requires a magnetic compass. Set a battery-powered circuit
such that one of its wires is directed east-west. While the circuit is
turned on, move the compass near the east-west wire. You will see the
compass no longer pointing toward the north.
Every electric current is surrounded by a magnetic field.
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Update: June 2012