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of magnetic flux? (1) Wb
of magnetic flux? (1) Wb

... An induction cooker makes use of eddy current to heat up a metal utensil, which in turn, heats up the food it contains. The food can be heated up faster by (1) increasing the strength of the alternating magnetic field produced by the induction cooker. (2) connecting the induction cooker to a voltage ...
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7TH CLASSES PHYSICS DAILY PLAN

... influence is understood or shown is called ``magnetic field of that magnet``.  Magnetic field lines are directed away from on N pole and towards on S pole.  Where the magnetic field lines are close together the field is strong and where they separated, the field is weak. At the two poles, field is ...
PHYS 1443 – Section 501 Lecture #1
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Seafloor magnetic stripes: look again
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... “Samples from one and the same dyke show both normal and reverse polarity directions.” “The results of this study indicate that the antipodal remanence directions separated from dyke samples in the Linzhou basin are due to different polarities of the Earth’s magnetic field rather than resulting from ...
Electromagnet - Community Science Workshop Network
Electromagnet - Community Science Workshop Network

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Hard Drive Side-Channel Attacks using Smartphone Magnetic Field
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magnetism

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... Activity 6.2.3 Resistance Introduction Resistance to current flow in a circuit can be good or bad. Even the best conductors provide some resistance. Electric power lines travel long distances on very good conductors, but engineers try to improve systems to lose as little energy as possible. Resistan ...
Your Title Here
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... RPM measurement of a CPU fan.  Also the slightest changes in circuit and programming will result into displaying different applications hence this project can be a viewed as a standard one for Halleffect applications.  Normally the hall-sensor is attached inside the cpu fan but we have done this p ...
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... atoms and electrons, any combination of applied field and radiation that produces a signal for one 1H would produce a signal for all 1H. The same is true of 13C nuclei. – Hydrogens in organic molecules, however, are not isolated from all other atoms. They are surrounded by electrons, which are cause ...
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Electric Currents and Simple Circuits

... only the downward motion matters, because the motion to the right is effectively canceled by the motion of the positive charges within the wire. Remember that the wire is electrically neutral; there are as many fixed positive ions in the wire as there are mobile negative electrons. The force on the ...
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Electrical ground probing

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Experimental studies on ion acceleration and stream line

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PHYS 1442-004, Dr. Andrew Brandt

... – Yes, you are absolutely right. You would wonder if a magnetic field can create an electric current. – An American scientist Joseph Henry and an English scientist Michael Faraday independently found that it was possible • Though, Faraday was given the credit since he published his work before ...
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File - Sir Rao Muzammil Ali

Pdf - Text of NPTEL IIT Video Lectures
Pdf - Text of NPTEL IIT Video Lectures

... We next come to the case of thulium, which has 4 f 12. So, the L value is 5, S value is 1, J value is 6 and the ground multiplet is an H term with spin multiplicity 3, J equal to 6. So, the g J is 7 by 6 and the P effective is just 7.57 Bhor magnetrons. Lastly we have ytterbium 3 plus, which has thi ...
magnitize! - knomi.net
magnitize! - knomi.net

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INDUCTIVE CURRENT SENSOR BASED ON NANOCRYSTALLINE ALLOYS Euler C.T. Macedo

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sea-floor spreading

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Giant magnetoresistance



Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance effect observed in thin-film structures composed of alternating ferromagnetic and non-magnetic conductive layers. The 2007 Nobel Prize in Physics was awarded to Albert Fert and Peter Grünberg for the discovery of GMR.The effect is observed as a significant change in the electrical resistance depending on whether the magnetization of adjacent ferromagnetic layers are in a parallel or an antiparallel alignment. The overall resistance is relatively low for parallel alignment and relatively high for antiparallel alignment. The magnetization direction can be controlled, for example, by applying an external magnetic field. The effect is based on the dependence of electron scattering on the spin orientation.The main application of GMR is magnetic field sensors, which are used to read data in hard disk drives, biosensors, microelectromechanical systems (MEMS) and other devices. GMR multilayer structures are also used in magnetoresistive random-access memory (MRAM) as cells that store one bit of information.In literature, the term giant magnetoresistance is sometimes confused with colossal magnetoresistance of ferromagnetic and antiferromagnetic semiconductors, which is not related to the multilayer structure.
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