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Explain Eddy currents.
Eddy currents: Magnetic materials placed as in alternating magnetic fields have eddy currents also induced in them. It is because the material is subjected to rate of change of flux linkages and change in accordance along with Faraday's Law of electromagnetic induction, emfs are produced in the material causing currents, termed as eddy currents, to flow in the material. Such currents cause loss of energy. It results in the heating up of the material. Loss of Eddy current is proportional to the square of the frequency and the square of the thickness of the material and its inversely proportional to the resistivity of the material. So as to reduce this eddy currents loss thin sheets termed as laminations are used instead of solid core.
Discuss important properties and uses of Glass and glass products. Glass and glass products - Glass is an inorganic material build by the fusion of various metallic oxides. The
Diode current: Zener region: when the reverse biased voltage is increase to a very high value then a point is reached where will is suddenly going a very high value. Th
Q. A 75-kVA, 230/115-V, 60-Hz transformer was tested with these results: • Open-circuit test: 115 V, 16.3 A, 750 W • Short-circuit test: 9.5 V, 326 A, 1200 W Determine:
Consider the circuit shown in Figure in the t -domain as well as in the s-domain. Formulate the s-domain nodal equations and use MATLAB to solve for V A (s) and V B (s).
Q. What are the different types of coupling in amplifiers? The coupling between stages of amplifications may also be used to classify amplifiers. There are four main groups: di
AC Circuit: This topic explain the basic concepts of single and three-phase ac system. Unit provides the thorough analysis and derivations as required by topics. Here we find
Explain Practical Digital to Analog Converters? In several DSP applications, we must reconstruct an analog signal after the digital processing stage. This is completed using a
ADI Add Immediate Instruction The bit data specified in the instruction is directly added with contents of accumulator and result of operation is stored in the accum
introduction for on ac circuits
Q. Single-axis autopilot control system of an aircraft? Figure (a) shows the block diagram of a simplified single-axis (pitch, yaw, or roll) autopilot control systemwith digita
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