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In layman's terms; a magnet has a natural magnetic field around it. This field interacts with iron based materials, like steel (but not stainless steel, or aluminum) and when a piece of steel is adjacent to the magnet's attractive pole, they stick together.
When current (electricity) flows through a conductor (piece of wire) a magnetic field is produced, similar to a regular magnet. If a piece of wire (with current flowing through) is wrapped around a magnet, the Electromagnetic field that occurs around the wire joins and strengthens the magnetic field of the magnet, thus strengthening the overall magnetism.
So when you see a crane picking up and dropping junk cars, they are simply turning on & off the flow of electricity through the coils of wire wrapped around the magnet doing the work.
What else can I help you with?
How do electromagnet fire alarms work?
the electromagnet makes the door close when a fire alarm goes off
Do you have to connect a cell to work an electromagnet?
A cell or other (DC) power source must, indeed, be connected to an electromagnet to make it work. It is an electromagnet. Surf the link to our friends at Wikipedia. It's a good article, and the pics are cool.
What does a battery contribute to an electromagnet to help it work?
A core
How does an electromagnet work in blender?
it connets to the bottom of the machine
What must you have for an electromagnet to work that you don't need for a regular magnet?
To make an electromagnet work, you need an electric current flowing through a coil of wire, which is not needed for a regular magnet.
How does lectromagnet work in loud speakers?
The electromagnet is a very important part of loud speakers. The electromagnet is always placed in the front of the magnet. When the electricity goes through the electromagnet the field is changed and this produces the vibrations in speakers.
In an electromagnet that turns the drive shaft which does the work?
The driveshaft carries the power but the whole unit does the work.
In an electromagnet which turns the drive shaft that does the work?
The driveshaft carries the power but the whole unit does the work.
What makes the electromagnet work?
maybe electrical energy i don't know
What must flow through the coil of wire to make the electromagnet work?
An electric current must flow through the coil of wire to make the electromagnet work. This current creates a magnetic field around the coil, inducing magnetism.
Can an electric bell use an electromagnet?
Yes, an electric bell uses an electromagnet to work. When the electric current flows through the coil of wire in the electromagnet, it creates a magnetic field that attracts and repels the metal armature, causing it to strike the bell and produce sound.
Which is better a permanent magnet or an electromagnet?
electromagnet
