Does temperature affect magnetic force

Answer 1

Yes, temperature affects the strength of a magnet. Colder temperatures will permit the magnetic field strength to increase a bit and hotter temperatures will decrease it a bit.

The effects can be demonstrated by a simple experiment with a bar magnet and a handful of carpet tacks. Freeze the magnet. Pick up some tacks. Take them off and count them. Record the data. Drop the magnet in boiling water. (And please be smart and safe about this part.) Use tongs to get it out and hold it with an oven mitt to pick up tacks again. Take them off and count them. Record the data. Compare the data. Repeat a few times. Compare the data from all runs. (Tacks work better than paper clips because they're smaller and yield a bit more accuracy in an experiment. Iron filings are a mess; they cannot be counted and must be weighed.)

What happens at really high temperatures? There is a point called the Curie point or Curie temperature (Tc) at which the magnetic properties disappear altogether. This temperature varies from material to material as one could expect. The material's magnetic domains are no longer "held in place" by the metallic crystal matrix when the Tc is exceeded. The atoms have too much kinetic energy and a random distribution of alignments of the domains will occur. Bye bye magnetism, hello paramagnetism.

Answer 2

yes,addition of heat energy or change in temperature would lead to the increase in kinetic energy of the molecular magnets thereby causing disruption in their magnetic moments or allignment.finally their magnetism will reduce.

Answer 3

although temperature does not affect a magnet to extremely, there is a small difference nonetheless. the colder the magnet the stronger the pull, and the hotter the magnet the weaker the pull.

Answer 4

An electric current flowing in a straight wire creates a magnetic field around the wire. Notice the "right hand" rule for determining the orientation: when the thumb of the right hand is pointing in the direction of the current, the fingers of the right hand curl in the direction of the magnetic field. we can see the effect of this magnetic field by bringing the wire close to the needle of a magnetic compass when the current is flowing. we can even make an electric current detector based on this principle

A current flowing through a coil of wire (the coil is also called a solenoid) creates a stronger magnetic field than the same current flowing through a straight wire. The magnetic field is strongest at the center of the coil. Each loop in the coil contributes additional strength to the magnetic field. The more loops, the stronger the field.

The magnetic field of a solenoid can be increased even further by placing a bar or rod of ferromagnetic material within the coil (diamagnetic and paramagnetic materials will also work, but will not retain a magnetic field when the current is turned off). The magnetic field from the coil strongly aligns all of the magnetic domains in the ferromagnetic material, creating a much stronger magnetic field than either the coil or the ferromagnetic material would have alone.

Permanent magnets are made from ferromagnetic materials. Ferromagnetic materials can "remember" their magnetic history. If a ferromagnetic material is exposed to a strong magnetic field, the magnetic domains within the material will retain at least some of the alignment induced by the external magnetic field.

When the temperature of a material is increased, what is happening on the atomic scale is an increase in the random motion of the atoms of which the material is made. There is random motion of atoms could affect the alignment of magnetic domains, so that increasing the temperature of a magnet would tend to decrease its strength. If we placed in oscillator there is change in voltage,current, frequencies by these variables we can find temperature of the substances

Answer 5

It's possible, as when magnets are heated, they tend to lose magnetic strength.

Answer 6

yes because It affects it by the atoms. The atoms spin in different directions if heat is near. If cold is near it works more.

Answer 7

Yes it does if you freeze the magnet the magnetic field gets larger and if you heat it up the magnetic field gets smaller

Answer 8

temperature does not affect the magnet.