Electromagnet

An electromagnet is simply a coil of wire. Description: A DC electromagnet is simply a coil of wire connected to a DC voltage source. The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and in . In this lesson, you will learn what an electromagnet is, how it is used in a few real life situations, and the parts that make it up. Part of an interactive on-line booklet about electromagnets explaining the strength of electromagnets.

This student sheet accompanies the lesson, Build an Electromagnet. Electromagnets are common in everyday appliances, and are becoming more common as the need for technology increases. Put electricity and magnets together and what do you get?

In this BrainPOP movie, Tim and Moby explain all about how electromagnets work. An electromagnet is a type of magnet in which the magnetic field is produced by electric current. An electric current flowing in a wire creates a magnetic field . The electromagnet developed from a series of observations. In 18Hans Christian Oersted (1777-1851) discovered that a current-carrying wire set up a . Explore the interactions between a compass and bar magnet.

Discover how the strength of an electromagnet changes depending on the number of wire coils in this electricity project.

See a rich collection of stock images, vectors, or photos for electromagnet you can buy on Shutterstock. Explore quality images, photos, art more. In this experiment you used electricity to make a temporary magnet, called an electromagnet. As long as the electric current was on, the iron crane was a magnet . A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field.

An electromagnet is made from a coil of . Student teams investigate the properties of electromagnets. They create their own small electromagnets and experiment with ways to change . Magnetic fields are produced when all the electrons in a metal object are spinning in the same direction, either as a natural .