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How are electromagnet and a bar magnet alike?
Both electromagnets and bar magnets can produce magnetic fields and attract ferromagnetic materials. They both have a north and south pole and follow the same laws of magnetism.
How can a compass be used to check the strength of an electromagnet?
see if a magnet will stick to it someone who knows stuff about magnets please improve this answer. I myself do not know because a magnet will not stick to a very weak magnet but it is still magnetic. EDIT why would you answer if you don't know the answer? You stroke a bar magnet on the material and after a while it either becomes magnetic or not. unless its already magnetic which you would know straight away because it would stick to the bar magnet. sorry if any of my answer doesnt make much sense ... hope i helped someone
What happens to the bar magnet as it nears the U magnet the bar magnet will?
Move towards the U magnet so that the poles attach.
What happened to a bar magnet when broken in half?
Six. Every bar magnet has 2 poles. If a bar magnet is broken, each resultant piece will be a bar magnet in its own right.
At the centre of a bar magnet magnetism is?
At the center of a bar magnet, the magnetic field lines converge and form a strong magnetic field. This region is referred to as the magnetic core of the magnet, where the magnetic strength is at its maximum. This is why the bar magnet's strongest magnetic force is typically concentrated in its center.
An advantage of an electromagnet (in contrast to a bar magnet) is?
An electromagnet can be turned on and off.
What advantage does a electromagnet have over a bar magnet?
The electromagnet can be turned on and off depending on whether it's needed or not.
How is an electromagnet different a bar magnet?
a electromagnet is bigger than a bar magnet
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.
Where are the two types of electromagnet and a bar magnet commonly used?
I'm not sure where a bar magnet is used, but an electromagnet is used in junkyards, and in some laboratories.
What does a electromagnet have that a bar magnet does not have?
The bar magnet and the electromagnet act identical. The difference being a electromagnet is a coil of wire that has a power source connect to both ends, this energizes the coil with an electromagnetic field.
If an electromagnet were used instead of a bar magnet to pick up nails the electromagnet would do what?
It will pick up the nails the same way a bar magnet would do!
The magnetic field of an electromagnet is similar to that of a magnet?
bar
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?
How is an electromagnet similar to a magnet?
The reason is because an electromagnet is hooked up to an artificial energy force, while a magnet is a charged piece of metal example: a battery hooked up to a piece of iron attracts paperclips but a magnet can be made by stroking a paperclip against a bar magnet to create a temporary magnet somewhat how a compass works
Is the magnetic field of an electromagnet different to a bar magnet?
The magnetic domains in a refrigerator magnet are laid down in parallel strips. They are also re-curved back on themselves so that the back side of the magnet has both north and south poles. If you put two refrigerator magnets back-to-back and move them around a little, it won't take long for you to "feel" the strips of magnetism. The common bar magnet have two simple poles at the ends.
What is the difference between a bar magnet and a electromagnet?
A bar magnet is a permanent magnet that produces a magnetic field without the need for an external power source. An electromagnet is a temporary magnet that produces a magnetic field when an electric current flows through a coil of wire. The strength of an electromagnet can be controlled by adjusting the amount of current flowing through the coil.
