0
What is an advantage of using an electromagnet over a permanent magnet?
Wiki User
∙ 12y ago
The advantage of an elecromagnet is that you can turn it on and off with a simple switch.
So for example if you want to pick up a scrap car with a crane/electromagnet and move it, you can turn the electromagnet off when you want to release the car.
You could not do the with a permanent magnet obviously.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Advantage of using electromagnet in an electric motor rather than a permanent magnet?
convert electrical energy to energy of motion...! the usage of an electromagnet allows us to control the flow of electrons to the electric rotor,thereby allowing us to control the working of the rotor,whereas with a permanent magnet there will be a continuous supply of energy which can be stopped only if the magnet is damaged or heated.
What is an advantage of using an electromagnet rather than a regular magnet?
A regular magnet, "Earth Magnet", can be very strong, the disadvantage of using them is that you cannot turn off the magnet. Electromagnet uses the electricity of a common battery and can be turned on and off, such as for switches in a circuit board.
How is an electromagnet like a permanent magnet?
No an electromagNet is created via electricity, once the electricity stops so does the magnet it can be created using a current in a wire tightly wrapped around a iron or metal rod
An advantage to using an electromagnet is that they?
Can be turned off
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.
Advantage of using electromagnet in an electric motor rather than a permanent magnet?
convert electrical energy to energy of motion...! the usage of an electromagnet allows us to control the flow of electrons to the electric rotor,thereby allowing us to control the working of the rotor,whereas with a permanent magnet there will be a continuous supply of energy which can be stopped only if the magnet is damaged or heated.
What is an advantage of using an electromagnet rather than a regular magnet?
A regular magnet, "Earth Magnet", can be very strong, the disadvantage of using them is that you cannot turn off the magnet. Electromagnet uses the electricity of a common battery and can be turned on and off, such as for switches in a circuit board.
How is an electromagnet like a permanent magnet?
No an electromagNet is created via electricity, once the electricity stops so does the magnet it can be created using a current in a wire tightly wrapped around a iron or metal rod
What is the name of a magnet made using the electrical?
That is an electromagnet.
An advantage to using an electromagnet is that they?
Can be turned off
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 a magnet created using electric current?
An electromagnet. Unlike other magnets it can be switched on and off.
Using the north pole of a bar magnet how can you prove that a nail has become an electromagnet?
Put the South pole of the nail against the bar magnet to see if it attracts or repels.
Compare electromagnet and permanent magnets?
The difference between an electromagnet and a bar magnet is that the bar (steel) magnet is always turned on, therefore always magnetic. The electromagnet is a magnet that is powerd by a battery so you can turn it on and off.
How do you separate aluminium and steel cans?
using a magnet: steel atracts and aluminum doesn't
Which separation technique do you use to separate a magnetic substance from a nonmagnetic substance?
Of course, using a magnet (electromagnet). This is valid for many mixtures.
Can a magnet have 3 poles?
Of course . You can make such a magnet easily using a safety pin. Take a safety pin and magnetize it using a permanent magnet. Then unfold it. The ends will have same poles and at the middle you will have the other. So you can have a magnet with three poles. Verify it using compass.
