can be designed to do more complicated jobs. A few examples
Bell - By turning an electromagnet on and off, a metal arm
(or object) can be attracted over and over to the electromagnet
causing the arm to hit a bell.
- A solenoid is an electromagnet designed so that a plunger
or metal object can be pulled or pushed back and forth. The
starter in your car is basically a large solenoid. When you
turn the key, the solenoid pushes the gears of the starter
into the gears of the engine, causing the engine to turn and
start. Once the engine is running on the burning gasoline,
the solenoid pulls the gears back apart.
information on magnets, electromagnets, and their applications,
see the web links below.