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 must be the acceleration of the elevator, Alex is on the wrestling tea...

Alex is on the wrestling team and has a mass of 85.3 kg. Being a whiz at physics, he realizes that he is over the 830.0-N cut off for his weight class. If he can convince the train

What is diffusion current , Because of concentration difference holes or el...

Because of concentration difference holes or electron try to vary from their side to other side. Only these holes or electrons cross the junction, having high kinetic energy. This

Newton laws, can you give me a example of calcuate of laws2

can you give me a example of calcuate of laws2

Determine the superposition principle, Determine the Superposition Principl...

Determine the Superposition Principle The Superposition Principle for numerous electric potentials, unlike electric fields and forces, is summed algebraically.  Electric potent

Dielectric, how dielectric mat is used for high voltage safety ? how it wor...

how dielectric mat is used for high voltage safety ? how it works?

Magnetic effects of current, i have to make a written project on this topic...

i have to make a written project on this topic please tell me something what should i make

Magnetism, What are the General Properties of Magnet

What are the General Properties of Magnet

Gold leaf electroscope, Gold Leaf Electroscope: A gold leaf electroscop...

Gold Leaf Electroscope: A gold leaf electroscope is a device that can be used for notice charge. By the use of this device we can also detect whether a body is positively or ne

What is the electric field strength, Two parallel plates having a p.d. of 2...

Two parallel plates having a p.d. of 200V among them are spaced 0.8mm apart. What is the electric field strength? Find also the flux density when the dielectric among the p

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