MAGNETIC MAGNETIC REFRIGERATION a fruitful approach to reduce environmental pollution... ABSTRACT : The objective of this effort is to determine the feasibility of designing‚ fabricating and testing a sensor cooler‚ which uses solid materials as the refrigerant. These materials demonstrate the unique property known as the magneto caloric effect‚ which means that they increase and decrease in temperature when magnetized/demagnetized. This effect has been observed for many years and was used for cooling
Premium Heat Refrigerator Thermodynamics
The Earth’s Magnetic Field This article will cover three large concepts about the Earth and its magnetic field. The first concept we will talk about is the fact the Magnetic North is NOT at the North Pole. This is because the magnetic North moves about a lot and does not always match up with the geographical north (the north pole). The diagram above shows us the difference between these two poles. The orange rectangle represents the giant ‘magnet’ inside the
Premium North Pole Earth Poles
Response to “Two Ways a Woman Can Get Hurt”: Advertising and Violence It is without a doubt that advertisement surrounds one’s life on a daily basis. According to Consumer Reports Website‚ the average American is exposed to 247 commercial messages each day. In the article “Two Ways a Woman Can Get Hurt” the author Jean Kilbourne strongly believes that advertising is one of the culprits behind the objectification and violence against women. Kilbourne points out that ads depict men and especially
Free Advertising Woman Boy
Latihan 5: Magnetism Magnetic Fields 1. An electron gun fires electrons into a magnetic field directed straight downward. Find the direction of the force exerted by the field on an electron for each of the following directions of the electron’s velocity: (a) horizontal and due north; (b) horizontal and 30° west of north; (c) due north‚ but at 30° below the horizontal; (d) straight upward. 2. (a) Find the direction of the force on a proton moving through the magnetic fields in Figure 1‚ as
Premium Magnetic field Electron Electric charge
Magnetic ink is very useful because it is readable both by humans and by specialized equipment. It is one of the components that makes it possible to process personal checks securely‚ quickly and accurately. Magnetic ink character recognition (MICR) is a character-recognition technology used mainly by the banking industry to ease the processing and clearance of cheques and other documents. The MICR encoding‚ called the MICR line‚ is at the bottom of cheques and other vouchers and typically includes
Premium Cheque Typography
In article “Two Ways a Woman Can Get Hurt: Advertising and Violence‚” Jean Kibourne argues that advertising encourages sexual and physical violence towards women. One example from her article that supported main argument well is the advertising about jeans. Jean discusses‚ “The ad that ran in the Czech version of Elle portraying three men attacking a woman seems unambiguous‚ the terrifying image is being used to sell jeans to women” (583). It a strong use of evidence for advertising encourages sexual
Premium Gender Sexual intercourse Woman
Magnetic particle inspection (MPI) - Is a non-destructive testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferroelectric materials such as iron‚ nickel‚ cobalt‚ and some of their alloys. The process puts a magnetic field into the part. The piece can be magnetized by direct or indirect magnetization. Direct magnetization occurs when the electric current is passed through the test object and a magnetic field is formed in the material. Indirect magnetization occurs
Free Magnetic field Magnetism Alternating current
Magnetic Properties of Solids Magnetic Properties Magnetic (with unpaired electron) Materials Non-magnetic or diamagnetic (electrons all paired up) Paramagnetic Ferromagnetic Antiferromagnetic Ferrimagnetic Magnetic Behavior B = μH B = μ0H + μ0M Induction generated Induction generated by the field by the sample B: magnetic flux density μ: permittivity (m0: free space) H: magnetic field M: Magnetization χ = M/H χ: magnetic susceptibility B = μ0H + μ0Hχ B = μ0H (1 + χ) = μH
Premium Magnetism Magnetic field
The magnetic interaction is described in terms of a vector field‚ where each point in space (and time) is associated with a vector that determines what force a moving charge would experience at that point (see Lorentz force). Since a vector field is quite difficult to visualize at first‚ in elementary physics one may instead visualize this field with field lines. The magnetic flux through some surface‚ in this simplified picture‚ is proportional to the number of field lines passing through that surface
Premium Magnetic field Magnetic flux
Magnetic Susceptability Michael J. Horan II Abstract: The change in weight induced by a magnetic field for three solutions of complexes was recorded. The change in weight of a calibrating solution of 29.97% (W/W) of NiCl2 was recorded to calculate the apparatus constant as 5.7538. cv and cm for each solution was determined in order to calculate the number of unpaired electrons for each paramagnetic complex. Fe(NH4)2(SO4)26(H20) had 4 unpaired electrons‚ KMnO4 had zero unpaired electrons‚ and
Premium Magnetism Magnetic field Electron