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A three-phase, wye-connected, cylindrical-rotor synchronous generator rated at 10 kVA and 230 V has a synchronous reactance of 1.5per phase and an armature resistance of 0.5 per phase.
(a) Determine the voltage regulation at full load with: (i) 0.8 lagging power factor, and (ii) 0.8 leading power factor.
(b) Calculate the power factor forwhich the voltage regulation becomes zero on full load.
Particles of mass M and m separated in space by a distance R exert a mutually attractive gravitational force F on one another given by where G is the universal gravitationa
Q. In a CD amplifier,given Rs =4k?, µ=50 and rd= 35k μ. Find the voltage gain Av. The voltage gain, A v = Vo / V i = µR s / (µ+1) R s + rd = 50*4* (103 )/ (50+1)*4*103
Consider the optical cavity shown below. (a) Compute the photon lifetime. (b) Compute the cavity Q (assume that the wavelength region of interest is 500nm). (c) Su
Explain Suitability of ferrites for high frequency application. Ferrites are extensively used in micro wave equipments and in computers. Ferrites are advantageous at high frequ
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A 100kw,230v,dc shunt generator,with Ra=0.05,and Rf=57.5 has no load rotational loss(friction,wandage,core loss)of 1.8kw.compute a) The generator efficiency at full load.
Q. D flip-flop - latch or delay element? The symbol for the clocked D flip-flop is shown in Figure (a), in which the two output terminals Q and ¯ Q behave just as in the SRFF,
Q. A three-phase, 50-Hz induction motor has a full load speed of 700 r/min and a no-load speed of 740 r/min. (a) How many poles does the machine have? (b) Find the slip and t
contribution of circuit theory on the health and quality of life of the citizen
Voltage is referred as Potential difference among two points. Potential means its force. I think so.voltage defination is 100% correct.
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