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What magnet can be switched on and off?

An electro-magnet can be turned on and off.


What is a magnet that can be turned off?

An electromagnet.


Is a strong magnet that can be turned on and off?

an electromagnet


What is a strong magnet that can be turned on and off.?

an electromagnet


What is the use of a Electromagnet in cranes?

To have a magnet that can be turned on and off.


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.


An advantage of an electromagnet (in contrast to a bar magnet) is?

An electromagnet can be turned on and off.


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.


How does a magnet with an on-off switch work?

A magnet with an on-off switch works by controlling the flow of electricity to the magnet. When the switch is turned on, electricity flows through the magnet, creating a magnetic field. This magnetic field attracts or repels other magnetic objects. When the switch is turned off, the flow of electricity stops, and the magnetic field disappears, causing the magnet to no longer attract or repel objects.


What is the difference in a common bar magnet and an electromagnet?

The comon bar magnet has two poles, and the electromagnet can be turned on and off also the electromagnet uses electricity to create a magnetic field in the first place. so the difference is normal magnet cant be turned on and off but the electromagnet can. does that answer ur question?


What is a magnet that can be turned on and off called?

A magnet that can be turned on and off is called an electromagnet. It works by running an electric current through a wire coil to generate a magnetic field, which can be controlled by turning the current on or off.


What are two advantages of a electro magnet over natural magnet?

A permanent magnet is always on; there isn't any way to turn it off. An electromagnet can be controlled; you can turn it on or off, or change the amount of magnetism by varying the current passing through the coils.