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If an FM signal is given by sFM(t) = 100 cos [2πfct +100 m(τ ) dτ ] and m(t) is given in figure, sketch the instantaneous frequency as a function of time and determine the peak frequency deviation.
A three-phase, wye-connected, 2300-V, four pole, 1000-kVA, 60-Hz synchronous machine has a synchronous reactanceXs = 5, a field resistance Rf = 10, and an approximately linear ma
The armature of a four-pole dcmachine has a simplex lap wound commutator winding (which has the number of parallel paths equal to the number of poles) with 120 two-turn coils. If t
Electrical circuits and systems : Electrical systems allow energy to be conveniently delivered from the point of supply to the point of application - e.g. electric railways, ca
100
Q. Write a short note on types of enclosure of machine. Sol. The various types of d.c. machine : (1) Magnetic frame or Yoke (2)
The per-phase synchronous reactance of a three-phase, wye-connected, 2.5-MVA, 6.6-kV, 60-Hz turboalternator is 10. Neglect the armature resistance and saturation. Calculate the vo
By a simple time multiplexing of natural samples over a single line, a large radar site transmits 85 analog signals, each with 200-Hz bandwidth. If the sampling is done at twice th
what is the working of thermal transducers?
What do you mean by variability in oxidation state of transition metals different from that of the non transition metals? Illustrate with examples.
Compact Disc - Read Only Memory. A CD-ROM is any compact disc which having computer data. These discs can store enormous amounts of data (up to 640 megabytes). If there is a large
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