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Okay - it's going to be difficult to do an accurate diagram on here - so bear with me...
An electromagnet consists basically of a piece of metal surrounded by a coil of wire, which is connected to a power source. The simplest form would be an iron rod which has a piece of wire wrapped around it (about ten) coils should do it. The ends of the wire are attached to a 9 volt battery.
Ignore the dots in the following diagram - they're just to stop the spaces being removed by the forum !...
____|+ -|____
| ................... |
| ................... |
|___/\/\/\____|
It's a bit crude - but I think it's understandable. Basically, you connect the battery (+ -) with a continuous piece of wire. Wrap the wire around an iron rod - the '/\/\/\'. This induces a current in the rod, while the power is connected. Snakester1962 (Supervisor)
What else can I help you with?
Why electromagnet is different from a permanent magnet because an electromagnet what?
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
How do you turn off an electromagnet?
This is what makes a magnet an electromagnet - the ability to turn it on and off... Anyway, electromagnets can be turned off with either the help of a switch, or just by disconnecting the power supply.
The strength of an electromagnet only depends on the current in the coils?
And the amount of coils.
Is there a magnet in an electromagnet?
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current ceases. Take a look at this Wikipedia page for more information: http://en.wikipedia.org/wiki/Electromagnet
Would a powerfull electromagnet lift a needle out of a haystack?
Only if the needle was made of iron or copper
Why is a a electromagnet crane a frame structure?
An electromagnet crane is considered a frame structure because it consists of a rigid framework that supports the electromagnet, the lifting mechanism, and the load. The frame provides stability and strength to the crane structure, allowing it to safely lift and transport heavy objects using the electromagnet.
What phras best decscribe the geosphere?
The geosphere is a collective term for the lithosphere, hydrosphere, cryosphere, and the atmosphere.
What adjectives would you use to decscribe Megan Fox?
young, sexy, vixen, outspoken, naive, tanned
Is earth an electromagnet?
a part of the earths structure causes it to act like an electromagnet
Which is better a permanent magnet or an electromagnet?
electromagnet
An electromagnet becomes storgner when the?
an electromagnet becomes storgner when the.
What does an electromagnet operator do to release metal attached to the electromagnet?
An electromagnet operator can release metal attached to the electromagnet by turning off the electric current flowing through the electromagnet coils. This de-energizes the electromagnet, causing the magnetic field to dissipate and the metal object to fall off.
What is a magnet made by electric current?
An electromagnet.
What does an electromagnet operator do to release metal attached to an electromagnet?
burat
Why electromagnet is used for separating plastic bags?
An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.
Why electromagnet is different from a permanent magnet because an electromagnet what?
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
What is the structure of the magnet?
"Structure" is an imprecise term. So is "magnet," for that matter. The simplest kind of iron bar magnets have a structure of, well, iron. More complicated rare earth magnets generally have a more complicated crystal structure, but still, there aren't any "moving parts" inside a magnet, it's just whatever it's made of. The structure of an electromagnet is basically "wire wrapped around a metal core of some kind". The core isn't actually required, but all else being equal an electromagnet with a soft iron core is stronger than one with no core.
