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Explain Antiferromagnetism magnetic materials.
Antiferromagnetism: Magnetic dipoles are aligned anti-parallel to each other. Antiferromagnetic type materials are not as familiar as the common ferromagnetic materials. Only some, as chromium, manganese, ferrous and nickel oxides exist. This phenomenon arises below a specific temperature termed as the Neel temperature.
Hard magnetic materials are used for making (A) Permanent magnets. (C) Conductors. (B) Insulator. (D)Temporary magnets. Ans: Hard magnetic materials are
Q. Illustrate Core Losses in magnetic core material? Iron-core losses are usually divided into two components: hysteresis loss and eddy-current loss. The former is proportional
Q. Consider a current element I 1 d ¯l 1 = 10 dz ¯az kA located at (0,0,1) and another I 2 d ¯ l 2 = 5dx ¯ax kA located at (0,1,0). Compute d ¯F 21 and d ¯F 12 experienced by
We now have an equation for the magnetic field H at a distance r from a conductor carrying a current I amps And Ampere's experiments show that the force per unit lengthbetw
difference between cmp and sub in microprocessor.
Characteristics of Common Source Amplifier At low frequencies and by using a simplified hybrid-pi model, the following small-signal characteristics can be derived.
precision
Disadvantages
Interrupt Signals There are five interrupt signals in 8085 microprocessor. These signals are used to inter rut the current program under execution and transfer the ex
In an electron microscope, a beam of electrons is produced by a device called an electron gun. In the electron gun, electrons are 'boiled off' from a heated filament (which is the
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