Define the magnets, Physics

Assignment Help:

Define the Magnets

Magnets work according to rules similar to electric charges. All magnets have two poles, north (actually north-seeking) and south poles. Like poles repel and unlike poles attract. If you break a magnet in two, you get two magnets, each with a north and south pole. Try it yourself - but not with your brother's favorite magnet.

1218_Magnets 1.png

Modern theories of magnetism explain magnetic materials as  materials in which the magnetic domains in the material are aligned. Magnetic domains are each about an area of about 10 m by 10 m or 1020 atoms or molecules of the material. The more consistently these domains line up, the stronger the magnetic field of the material. This helps us explain why dropping or heating magnets can weaken them. Dropping a magnet can realign its domains. Kinetic theory explains that as a material is heated up, the atoms gain more vibration energy, which can also randomize the alignment of a material's magnetic domains.

Magnetic materials are ones that are attracted to a magnet such as iron, nickel and steel. Some of these materials can be temporarily magnetized by contact with a strong magnet. Nonmagnetic materials are ones not affected by a magnet such as glass, wool, aluminum or brass.

39_Magnets 2.png


Related Discussions:- Define the magnets

What is viscosity, The property of liquids (or gases) by virtue of which a ...

The property of liquids (or gases) by virtue of which a backward dragging force (viscous drag) acts tangentially on the layers of the liquid in motion and it tries to stop the moti

What are one dimensional wave , Energy is transferred in a one direction on...

Energy is transferred in a one direction only. Example : Wave propagating in a stretched string.

What do you mean by dispersion, What do you mean by dispersion? Describe a ...

What do you mean by dispersion? Describe a physical quantity which depends only on the material of the prism for its dispersion. Get an expression for it.

Determine the n-type drain and gate, Determine the N-type drain and gate ...

Determine the N-type drain and gate When gate is made positive with respect to source and substrate, negative (i.e. minority) charge carriers within the substrate are attracted

Magnetic Effects of Electric Current., A spring is held vertically downward...

A spring is held vertically downward and a current is passed through it . Then the length of the spring : A . increases B. decreases C . does not change D the spring osc

Illustrates the evidence to support the big bang theory, Q. Illustrates the...

Q. Illustrates the evidence is there supporting the Big Bang theory? Answer:- In brief the universe is expanding. Each of the galaxies we have observed that are utmost awa

Interference, with the help of diagram explain the working of newton''s rin...

with the help of diagram explain the working of newton''s ring

Twin paradox, Twin paradox: One of the most popular "paradoxes" in his...

Twin paradox: One of the most popular "paradoxes" in history, predicted trhough A. Einstein's special theory of relativity. Take two twins, born on the similar date on Earth.

Explain process of resonance, Resonance: When the frequency of driving...

Resonance: When the frequency of driving force becomes equivalent to the natural frequency of an oscillating system, the driving force gives maximum energy and the oscillating

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd