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Q. Explain about Rotating Machines?
Themost widely used electromechanical device is a rotatingmachine, which utilizes themagnetic field to store energy. The main purpose of most rotating machines is to convert electromechanical energy, i.e., to convert energy between electrical andmechanical systems, either for electric power generation (as in generators or sources) or for the production of mechanical power to perform useful tasks (as inmotors or sinks).Rotatingmachines range in size and capacity fromsmallmotors that consume only a fraction of a watt to large generators that produce several hundredmegawatts. In spite of the wide variety of types, sizes, andmethods of construction, all suchmachines operate on the same principle, namely, the tendency of two magnets to align themselves.
Most space is devoted to induction, synchronous, and direct-current machines. In spite of the distinguishing features peculiar to each class of machines, there are several striking similarities among the main kinds of machines.
Three transformers are provided with the following rating values: 1) 2400/240 V, 55kVA, Req1 = (0.1 + 0.0Y) Ohm and Xeq1 = (0.15 + 0.XX) Ohm. 2) 240/120 V, 25kVA, Req1 = (0.1
Q. A transistor has a base current i B = 25 µA, α = 0.985, and negligible ICBO. Find β, iE, and i .
what do you mean by band in communication? how it differs from bandwidth?
Components of GIS: 1. Software: GIS software gives the functions and tools required to store, analyze, and show geographical information. The key software elements are:
Ask The goal of this project is to model a system and to design a controller for the system so that the closed-loop system performs satisfactorily. We want to accurately positio
Q. (a) Show by applying Ampere's circuital law that themagnetic field associated with a long straight, current-carrying wire is given by B φ = µ 0 I/(2πr), where the subscript φ d
what is the application of thermodynamics in electrical engineering?
Q. An n-channel enhancement MOSFET operates in the active region with very large V A , v GS = 6V, V = 4 V, and i = 1 mA. Calculate K.
i just want to know any vacant in teaching side. Iam interested in taking online classes
Q. The equations for a two-port network are given by V 1 = z 11 I 1 + z 12 I 2 0 = z 21 I 1 + (z 22 + Z L )I 2 V 2 = - I 2 Z L (a) Satisfying the equations, dev
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