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That's called a permanent magnet.
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∙ 6y ago
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Why a magnet placed inside a solenoid does not show magnetism?
The solennoid is an electromagnet and only becomes magnetized when the power is applied.
State two methods of increaseing the strength of the magnetic field?
Add another magnet. If an electromagnet increase the windings and/or the power applied. Raise the voltage applied and you will raise the magnetic flux.
Can short circuit occur when power is not used?
No because a circuit without power applied can only be shown to be a short circuit after the power is applied between the 'right' two points.
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.
How could you increase a magnet's power without using electricity?
By rubbing two magnets together.
What is a apposit of magnet power?
Electric Power
Can Cooper be used as a magnet?
When copper is used as a wire to build a coil with a lot of whorls and a piece of iron is inserted in the hole of the coil this is called an electromagnetic device since that a voltage is applied in the coil, thus generating an electromagnetic power which is similar to that natural magnetic iron.
What is a magnet that can be turned on and off called?
Electromagnets have an electric current running through them that enables there conductive power to be strengthened. However, a magnets full conductive power can never be "turned off/on".
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.
