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Electromagnets are generally weaker than permanent magnets?
Depends on the size. One good example of a powerful electromagnet is the one used to lift cars at junk yards. Permanent magnets are not used for that due to the sheer power needed to lift cars. Also, electromagnets can be turned ON and OFF making them useful in picking up and then dropping the junk cars as needed. Another big example of electromagnets are the ones used on power generators to generate electric power.
How does heat make a magnet stronger?
It doesnt. Heat makes magnets weaker while cold will make them stronger.
Is mercury stronger or weaker?
stronger
The slower the coils of an electromagnet move stronger or weaker?
Weaker
Does love make you stronger or weaker?
Love does not make you weaker. How could it
Are electromagnets weaker than permanets magnets?
Not necessarily. electromagnets can be extremely powerful, capable of lifting tons of metal.
Electromagnets are generally weaker than permanent magnets?
Depends on the size. One good example of a powerful electromagnet is the one used to lift cars at junk yards. Permanent magnets are not used for that due to the sheer power needed to lift cars. Also, electromagnets can be turned ON and OFF making them useful in picking up and then dropping the junk cars as needed. Another big example of electromagnets are the ones used on power generators to generate electric power.
Advantages and disadvantages of electromagnets?
There are many reasons why electromagnets shouldn't be used. For example, permanent magnets are better to use economically because there is no cost of operation, like an electromagnet. There is also no maintenance or hardly any setup required. For permanent magnets, they can be used for a lot longer than electromagnets becausecan be used in hazardous places and are they are unaffected by shock or vibrations. Electromagnets require electricity to run, which costs money. They also burnout or lose its magnetism after a while. There are also many reasons why electromagnets should be used. For an electromagnet, a person could easily control the power of the magnetism, unlike the permanent magnet which has the same intensity throughout. A person could also turn the power of the magnet on and off, which can become useful in certain situations. An electromagnet can also be made stronger than permanent magnets. The electromagnet also has a good field of depth, unlike the permanent magnets limited field depth.
How does heat make a magnet stronger?
It doesnt. Heat makes magnets weaker while cold will make them stronger.
Are magnets poles equally strong?
Not if the magnet is symmetrical, and you define 'strength' in terms of flux density.Yes because it has a stronger attraction rate.there is no stronger or weaker for a magnet
What makes magnets weaker or stronger lead or cobalt?
Cobalt will make a magnet stronger but, definitely NOT Lead. Cobalt is used to make Hard disks and other components for computers.
On a magnet which pulls and which repels?
Parts that have the same charge will repel. Opposite charges attract/pull each other. So positive sides of magnets attract negatively charged magnets and repel positively charged magnets. Negative sides of magnets attract positively charged magnets and repel negatively charged magnets.
Does venus have a stronger or weaker?
weaker
Is venus stronger or weaker?
weaker
Is Hurricane Gustav getting stronger or weaker?
stronger it getting biger Weaker
Is Mars a stronger or weaker planet?
Mars is a stronger planet not a weaker planet
Is mercury stronger or weaker?
stronger
