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A permanent magnet may become unmagnetized because a shock it will have.

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14y ago

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Why might a permanent magnet become unmagnetized if it is dropped?

Dropping a permanent magnet can cause the magnetic domains within the material to become misaligned, reducing its overall magnetic field strength. This process can demagnetize the magnet if it is subjected to a strong enough impact.


What might happen if sunlight didn't strike the moon at different angles?

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Why might a permanent magnet become unmagnetized if dropped?

When a permanent magnet is dropped, the impact could cause the magnetic domains within the magnet to become misaligned, leading to partial or total demagnetization. The force and shock from the drop can disrupt the alignment of the magnetic domains, causing the magnet to lose its magnetic properties.


How you do Speed control of permanent magnet synchronous motor?

To vary the speed of a permanent magnet synchronous motor, you need to vary the frequency of the AC power source. Of course, this also means you need to vary the voltage because the power factor is going to change, and you need to compensate for that or you might damage the motor.


When you placed the magnet next to the iron?

nothing will happen dumbazz because it isnt magnetic


What would happen if you tried to operate a dc permanent magnet motor from an ac supply?

Apart from a lot of loud humming, the motor would not turn, it would take a lot of current and, if the circuit breaker did not trip to cut the supply of current, it would probably overheat or might even catch on fire.


What happens if you put a magnet on a lamp?

It depends on the type of lamp and the strength of the magnet. An incandescent lamp works literally by running current through the filament to heat it. Parts of the bulb might be magnetic, so if the magnet were ridiculously powerful it might deform or break them. Fluorescent and Neon lamps use ionization, so although I haven't tried it, I'd bet a reasonably strong magnet might affect them. If you have an old CRT-based television or computer monitor you can see how this works by placing a magnet near it -- note, this can cause permanent effects to the picture quality, so either keep the magnet at a distance where the effect is minimal or use a CRT you don't care about. LED lamps are so small and well-constructed that I think they're more like incandescent lamps -- a really powerful magnet might damage them, but otherwise is unlikely to affect them.


What would happen if you took your children out of US and your parents have permanent guardians?

Nothing "would happen". There are lots of things that might happen, depending on the exact circumstances.You would probably find it difficult to do this without their permission, though.


Where might you find a magnet in use?

On your refrigerator.


What does really happen when you cross the brumuda triangle?

no one really knows. but i have a theory. there could be a magnet in the triangle . because they say compasses don't work, and weird things happen to communication and radar. might be something else though


Why should you not drop magnets on floor?

It might damage the floor, and it might damage the magnet.