0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What does a current carrying coil with an iron core make?
A choke, an electromagnet, an electric motor stator, an electric motor rotor, etc. all depending on details of construction and use that are unstated in the question.
Is a horseshoe electromagnet bar magnet or a magnet pole a example of a temporary magnet?
An electromagnet is temporary because the field disappears when the current is switched off.
What is the difference from a normal magnet to an electromagnet?
An Electromagnet is magnetic..... It can also be switched between positive and negative by the power source being turned around(battery)
Is a electromagnet only charged when electric current passes through?
Basically, yes. However, especially when the electromagnet uses iron, it will most likely have some residual magnetism when the current is switched off. Note: You shouldn't used the word "charged" in this context. That refers to electrical charges, and is not usually used for magnetism.
What does an electromagnet operator do to release metal attached to the electromagnet?
burat
What will happen if you put a compass next to an electromagnet that is switched?
the compass's needle will point at the electromagnet
Will iron filing get attracted to an electromagnet when it is switched on?
Yes
What are two advantages of a natural magnet over electromagnet?
A natural magnet is permanent - an electromagnet loses its power when it's switched off.
What does a current carrying coil with an iron core make?
A choke, an electromagnet, an electric motor stator, an electric motor rotor, etc. all depending on details of construction and use that are unstated in the question.
Is a horseshoe electromagnet bar magnet or a magnet pole a example of a temporary magnet?
An electromagnet is temporary because the field disappears when the current is switched off.
What is the difference from a normal magnet to an electromagnet?
An Electromagnet is magnetic..... It can also be switched between positive and negative by the power source being turned around(battery)
Why electromagnet is different from a permanent magnet because an electromagnet what?
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
What is a magnet created using electric current?
An electromagnet. Unlike other magnets it can be switched on and off.
A magnet can be switch on and off?
An electromagnet can - for example in scrapyards where a crane picks up a car with power on, then drops it when power switched off.
Describe how you think an electromagnet can be used to make a stack of scrapped cars three cars high?
An electromagnet's switched can be turned on, so that it can induce magnetism. Anelectromagnetcaneasilymake a stack of three carsbecausecar body is made a steel. Electromagnet and Steel develop a good power of magnetism.
How is electromagnet the same as permanent?
An electromagnet is only magnetic while current is flowing through the coils. A permanent magnet is always magnetic, and does not need electricity. An example of an electromagnet at work is in a metal scrape yard, where a large electromagnet is used by a crane operator to lift ferrous metals into a crusher (scrapped cars, for instance). The metal drops into the crusher when the electricity is switched off by the crane operator. Therefore, they are only really similar when both are magnetised.
Why is a electromagnet not a permanent magnet?
An electromagnet only retains major magnetic properties when a current is being run through it.AnswerWhether a material makes a permanent or temporary magnet depends on the nature of the ferromagnetic material involved. For example a coil with a steel core will retain much of its magnetic flux density when the current is switched off, whereas a coil with an iron core will lose most of its magnetic flux density when the current is switched off.
