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The electric power is measured the same as in any other electric circuit, in watts. You calculate this by multiplying the current (in amps) by the potential difference (in volts) across the circuit. So:
P = I V
If you meant how do we measure the strength of the magnetic field generated, there are two different vector fields that may be called "magnetic field". These are the H-field and the B-field.
The H-field may also be called the "magnetic field intensity", the "magnetic field strength", the "auxiliary magnetic field" or the "magnetising field". It is measured in amps per metre.
The B-field may also be called the "magnetic flux density", the "magnetic induction", or the "magnetic field". It is measured in teslas.
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∙ 15y ago
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If you circulated copper wire to magnet and pass current through copper wire it then power of magnet is incrase?
The copper, technically, wouldn't increase it's power but rather extend the magnetic field of the magnet.
What are two advantages of a natural magnet over electromagnet?
A natural magnet is permanent - an electromagnet loses its power when it's switched off.
What does a electromagnet have that a bar magnet does not have?
The bar magnet and the electromagnet act identical. The difference being a electromagnet is a coil of wire that has a power source connect to both ends, this energizes the coil with an electromagnetic field.
When Liquid helium is cut off by a power loss what happens to a MRI magnet?
After liquid helium is cut off, the temperature could rise up and reach temperature. Under these circumstances, the magnet can demagnetise
What does a magnet do to a paperclip?
A paperclip attracts a magnet ,a magnet attracts a paperclip.
What is a apposit of magnet power?
Electric Power
Do magnets lose their power?
No.If you break the magnet, it is still a useful magnet.
Do power stations work with a wire and magnet?
Some power stations do work with a wire and magnet but some others don't.
How do they power a magnet train?
With magnets
Is the magnet in a compass a permanent magnet or a electromagnet?
It is a permanent magnet. Electromagnets(as the name suggests) requires an electric source to become a magnet, when the power source is turned off it will not function as a magnet.
What is a magnet without any applied power called?
That's called a permanent magnet.
If you circulated copper wire to magnet and pass current through copper wire it then power of magnet is incrase?
The copper, technically, wouldn't increase it's power but rather extend the magnetic field of the magnet.
Why is your Refrigerator magnet losing power?
because it is
How is a pencil case procted?
by the power of the magnet.
What will happen if water is poured on a magnet?
When we pour water onto a magnet it loses a little bit of magnetic power.
Can heating a magnet cause it to loose its magnetic properties?
Yes, a magnet looses it's power even when it is hammered.
How to cause a magnet to lost its magnetic power?
A magnet can lose its magnetism if exposed to high temperatures. If heated above the point called the Curie temperature, a magnet will lose its magnetism.
