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What are the simalarities and difforences between an electro magnet and a permanent magnet?
Wiki User
∙ 12y ago
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Each produces a magnetic field
Each has a north and a south pole
Different
You can turn an electromagnet on and off. Permanent magnets are always "on".
They are made from different materials
Electromagnets require power. Permanent magnets don't.
You can easily vary the strength of an electromagnet, but not a permanent magnet
Some permanent magnets occur naturally and have been around for longer than humans have been. Electromagnets were not invented until the 1800's
Electromagnets are capable of producing more intense magnetic fields than permanent magnets
The names of some permanent magnets are more fun to say: neodymium-iron-boron
Just thought I'd toss in that last one
Wiki User
∙ 12y ago
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How are electro magnet different from permanent magnet?
Electro magnets differs from permanent magnet because it requires electricity. A simple electro magnet consists of an iron rod wrapped in a coil of copper and when electricity flows through the copper, a magnetic field is formed.
Why would a bar magnet pick up more paper clips than an eletromagnet?
?? lol i dont know what electro magnets u have been using! if it is a homemade electro magnet, try increasing the coils in the wire ro the power u are putting into it. does the bar magnet (permanent magnet) have a larger surface area than the electro one? also, you do know that the magnetic potential of electro and permanent magnets vary right? they use electro magnets in junk yards that are capable of lifting scrap cars with eaaase
When all of the magnetic domains line up on their own what is the materia called?
electro magnetic feilds
Differentiate between potential difference and electro motive force?
The difference between potential difference and electro motive force is that potential difference never remains constant whereas the electro motive force always stays constant.
What is the strongest type of permanent magnet?
An electro-magnet would be the strongest magnet. Or the sun itself would be the strongest natural magnet.
Constitution and temperament in electro homoeopathy?
Only two medicines are common between homeopathy and electro homeopathy: Rhododenern and Viscum Album
What are the benefits of using an electromagnet rather than a bar manet?
An electro-magnet can be switched on & off - a bar magnet is 'permanent' Think of a scrap-yard. If the magnet they use to pick up huge quantities of metal were permanent, they'd have to manually remove every piece. With an electro-magnet, they simply turn the power on to pick up a load, and off when they want to release it. You can make your own electro-magnet with a battery, some wire and a large nail.
What is the force between charges called?
electro-static force
Is there a difference between magnets and electromagnets?
"electro magnets" are magnetic ONLY when electricity travels through a coil of wire surrounding them. "Magnets", as you state it, are permanent magnets and remain so independent of and not dependent upon any additional electrical charge.
Ionic bonds are between?
They are between two atoms.These atoms have high electro negativity difference
What kind of bond is there between sulphur electro negative value 2.5 and chlorine electro negative value 3.0?
They form SCl2 which is slightly polar covalent bond.
How are temporary and permanent magnets alike?
Yes Permanent magnets is the term used to describe magnets that are always magnetic, an non permanent magnet would be an electro magnet which is only a magnet when an electric current is put through it.
