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Use a compass. The north (-seeking) pole of the compass will be attracted to the south pole of the magnet.
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∙ 12y ago
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What is an electromaget?
An electromagnet is made by wrapping many coils of copper wire round an iron bar. When electricity is send along the coiled wires, the iron bar becomes magnetised until the electricity is switched off.
Why is a iron bar placed in a solenoid?
Solenoids operate by means of electro-magnetic force when a current is passed through them. Iron is easily magnetised and is the only choice for the core.
Why horseshoe magnet be stored with bar of soft iron across the poles?
the tiny magnets or domain at end of magnets are not perfectly align and if we keep it the magnetic strength gets weaker and weaker so by attaching bar of soft iron opposite poles induces on it and this will keep the tiny magnets at the end align.
How will you find out which one is magnet when two identical bars are given one of them is a magnet and the other is a simple iron bar?
One way is to suspend each bar from a string tied around the middle of the bar. The magnetized bar should rotate to orient itself with the Earth north and south magnetic poles. The other bar will just hang there.
How can you tell the difference between a bar of iron a bar of copper and a magnet?
Iron is a ferromagnetic metal, and copper is not. Iron will be attracted to the magnet but the copper will not.
How do you magnetise a iron bar?
If you wrap a length of wire around the iron bar then pass a current through the wire, the bar will become magnetised.
How do the iron filings behave when sprinkled over the bar or horseshoe magnet?
spread out from one pole and curve around to the other
What is an electromaget?
An electromagnet is made by wrapping many coils of copper wire round an iron bar. When electricity is send along the coiled wires, the iron bar becomes magnetised until the electricity is switched off.
Why is a iron bar placed in a solenoid?
Solenoids operate by means of electro-magnetic force when a current is passed through them. Iron is easily magnetised and is the only choice for the core.
Why a coil of wire with a direct current passing through it will magnetise a piece of iron?
The coil would act as if a bar magnet inserted along its axis. So any iron material inserted gets magnetised.
Where are the poles of a disc magnet located?
It depends on the magnet, most of them have poles on the flat faces, but some magnets are magnetised on the outside diameter. this means that if you draw a line across the flat face, the south pole is on one side and the north pole on the other side
Can a steel bar be magnetised by double stroke?
Short Answer: Yes. Long Answer: Yes.
What is the tendency of iron filings concentrates on the north and south poles?
becouse at north &south poles the pole strength is more than other part of bar magnet so attraction is also more at poles Theoretically, magnet's lines of force - as evinced by the iron filings - encompases all universe, but, nonetheless, they meet together at the magnet's poles
What is a pole on a magnet?
The poles of a magnet are the ends of the core of the magnet, where the lines of force emerge. An experiment with iron filings shows the lines of force, by putting a sheet of paper over the magnet and sprinkling fine iron filings. This is an easy thing to do at home. For a bar magnet the poles will be at opposite ends. If you have two such magnets you can experiment and find that like poles repel, opposite poles attract.
What do you call a bar magnet which doesn't have poles?
Without poles, it's not a magnet. It's just a bar. All magnets have north and south poles.
Why horseshoe magnet be stored with bar of soft iron across the poles?
the tiny magnets or domain at end of magnets are not perfectly align and if we keep it the magnetic strength gets weaker and weaker so by attaching bar of soft iron opposite poles induces on it and this will keep the tiny magnets at the end align.
Is a iron bar a insulator or a conductor?
A iron bar is a conductor
