The magnetic field of a bar magnet is strongest at either pole
of the magnet. … The field lines are closely packed at either pole of the magnet, widening as they get further from the pole and connecting to the opposite pole of the magnet. The magnetic field lines emerge from the north pole and enter the south pole.
Where is the power of magnet concentrated?
Conventionally, we say that magnetic field lines leave the north end of a magnet and enter the south end of a magnet. The forces of a magnet are strongest at
the poles
. This is because the magnetic field tends to be concentrated at the poles (and spread out and bulging between them).
Is a magnet strongest at its pole?
The behaviour of a bar magnet with its magnetic field concentrated at its north-seeking and south-seeking poles. Magnetic pole, region at each end of a magnet where
the external magnetic field is strongest
.
Why is the magnetic field strongest at the North Pole?
the magnetic field lines never cross each other
.
the closer the lines
, the stronger the magnetic field (so the magnetic field from a bar magnet is strongest closest to the poles)
Is an electromagnet a permanent magnet?
An electromagnet is a
type of magnet
in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. … However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.
Why can a magnet attract an Unmagnetized nail?
The reason a magnet can attract an unmagnetized nails is that?
nails become temporarily magnetized in a magnetic field
. … A magnetic field is always created around the wire.
Can ever there be a magnet without pole?
There is never an isolated pole
(a monopole). All magnets attract iron, such as that in a refrigerator door. However, magnets may attract or repel other magnets.
What happens to the pole when the magnet is broken?
Each one reinforces
the magnetic fields
of the others. Each one has a tiny north and south pole. If you cut one in half, the newly cut faces will become the new north or south poles of the smaller pieces.
Which magnet is strongest?
The strongest permanent magnets in the world are
neodymium (Nd) magnets
, they are made from magnetic material made from an alloy of neodymium, iron and boron to form the Nd
2
Fe
14
B structure.
How can you tell where the magnetic field is strongest?
The magnetic field of a bar magnet is strongest
at either pole of the magnet
. It is equally strong at the north pole when compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.
Where is the field strongest?
The magnetic field is strongest at
the poles
, where the field lines are most concentrated.
Why do like poles repel?
Like poles of a magnet repel each other. This is because
when the two magnets of like poles are kept facing each other the lines of forces are in opposite directions
. … When the unlike poles of a bar magnet face each other the magnetic lines of force are in the same direction and hence unlike poles attract each other.
Which is more powerful permanent magnet or electromagnet?
Electromagnets have the main benefit of manipulating their magnetic pull strength – both by turning the magnet on or off and by adjusting the current. They also feature greater pull strength than permanent magnets. Some estimates place the largest electromagnet at
20 times stronger than
the strongest permanent magnet.
What kind of magnet can be turned on and off?
An electromagnet
is a magnet that works with electricity. It can be switched on and off. The coils are nearly always made of copper wire because copper is such an excellent electrical conductor.
What is the difference between bar magnet and electromagnet?
Hint The basic difference between them is that a
bar magnet is a permanent magnet whereas an electromagnet is a temporary magnet
. An electromagnet is formed when an electric current is passed through wires wound around soft metalcore. An electromagnet loses its magnetism once the current flow is stopped.
Which is the best procedure to make a permanent magnet?
Take two magnets put one North pole and one South pole on the middle of the iron
. Draw them towards its ends, repeating the process several times. Take a steel bar, hold it vertically, and strike the end several times with a hammer, and it will become a permanent magnet.
