The main strength of a magnet is
at the poles
, i.e. the North and South poles, which lie at each end of a magnet, or each side of a circular magnet.
What is the strongest part of a magnet bar?
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.
What part of the magnet has the strongest force?
The magnetic field generated by any magnet is always strongest
at either pole
. The magnetic force is equally as strong at both the north and south pole.
Are 2 magnets stronger than 1?
Yes, stacking multiple magnets together can make them stronger. Two or more magnets stacked together
will exhibit nearly the same strength as a single magnet
of the combined size.
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.
Are natural or artificial magnets stronger?
Artificial magnets are made by man by using different techniques.
Natural magnets
are found in nature. They are stronger as compared to natural magnets. They are weaker as compared to artificial magnets.
What would happen if you broke a magnet in half?
If you break a bar magnet in half,
each half will have a north and south pole
, even if you break it in half many of times. The north poles of two magnets will repel each other, as will their south poles. On the other hand, a north pole and a south pole will attract each other.
Is metal attracted to a magnet?
Metals are
the only substances that are magnetic
. The most common magnetic metal is iron. You don't see too many products made of pure iron but you do see a lot of products made of steel. Since steel has a lot of iron in it, steel is attracted to a magnet.
How long will a magnet stay magnetized?
How long will a magnet stay magnetized? Sintered Nd-Fe-B magnets
will remain magnetized indefinitely
. They experience a minuscule reduction in flux density over time. As long as their physical properties remain intact, neodymium magnets will likely lose less than1% of their flux density over 100 years.
What happens if you force 2 magnets together?
When two magnets are brought together,
the opposite poles will attract one another, but the like poles will repel one another
. This is similar to electric charges. Like charges repel, and unlike charges attract. Since a free hanging magnet will always face north, magnets have long been used for finding direction.
Can you increase the strength of a magnet?
Putting a piece of iron or steel inside the coil makes the magnet strong enough to attract objects. The strength of an electromagnet can be increased by
increasing the number of loops of wire around the iron core
and by increasing the current or voltage.
What is the most likely outcome it will become a permanent magnet?
A magnetically soft material is placed in a strong magnetic field. What is the most likely outcome? It will become a permanent magnet
because the domains will remain aligned
. It will become a temporary magnet because the domains will remain aligned.
Does a magnet ever lose its strength?
Demagnetisation is a slow process
but magnets can lose their strength over time
. This generally happens in two ways. So-called permanent magnets are constructed from materials made up of magnetic domains, in which atoms have electrons whose spins are aligned with each other.
How is a permanent magnet made?
The main way that permanent magnets are created is
by heating a ferromagnetic material to a key high temperature
. The temperature is specific to each kind of metal but it has the effect of aligning and “fixing” the domains of the magnet in a permanent position.
Is magnet man-made?
Magnets can be natural and manmade
. Natural magnets are found in the earth and are rich in an iron mineral called magnetite. Man-made magnets are developed in a lab by taking metallic alloys and processing them to align the charge.
What is an artificial magnet?
Magnet which are made from iron in different components shape and sizes for different uses are called artificial magnet. It is
a magnetized piece of iron, steel, Cobalt or nickel
. These magnets are of different sizes and shapes. It is used in loudspeaker, telephones, radios, television etc.
