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1. Explain why the SCC is linear.
2. Distinguish between Xs (unsaturated) and Xx (saturated). Which one should be used for higher accuracy in predicting the voltage regulation of a synchronous generator.
3. The synchronous reactance of an alternator is not constant over the entire operating range. What is this so? What value would you use?
4. In what manner does an synchronous motor adjust itself to an increasing shaft load?
5. State the assumptions made in the Potier method and the effect they have on the accuracy of voltage regulation as calculated by this method.
a zener diode exhibits a constant voltage of 5.6 volts for currents greater than five times the knee current.Izk is specified to be 1 ma. the zener is to be used in the design of a shunt regulator fed from a 15 volts supply .
If you have a 300 ohm transmission line terminated with an antenna that presents a (400 ohm - j 600 ohm) load impedance:
suppose you are driving a car listening to a FM radio. Fm receiver has an input resistance of 100 ohm. Signal received by your car antenna is 15*10^-6V[rms]. Peak voltage measured at the loudspeaker of the car is 7V.
you run a 50ft extension cord to a load. the resistance of each conductor in the cord is 0.05omega foot. if the
A parallel RC circuit is connected to a 100-volt 60 Hz source. The current flow through the resistor is measured and found to be 10amps. The current flow through the capacitor is measured and foundto be 10 amps.
a)How many coulombs of charge are stored in the battery when fully charged?
Evaluate the problems in the appropriate number base's showing your full workings -
Two soccer players start from rest, 34 m apart. They run directly toward each other, both players accelerating. The first player's acceleration has a magnitude of 0.42 m/s2. The second player's acceleration has a magnitude of 0.41 m/s2.
The general expression for an idealized uniform plane water wave propagating in the +x direction is h(x,t) = Acos(wt - kx + phi) m where h represents the height of water particles at the water surface above the unpurturbed or quiescent water surface ..
A random variable X is normally distributed with mean u = 10 and standard deviation sigma = 1.5. Find the following probabilities: A. P(8 or equal 8.5).
Design a counter that will execute the numerical sequence 0, 2, 4, 6,repetitively. Unwanted states should be directed into wanted states that give the simplest logic functions. - Identify the number of required JK D-FLIP FLOP;
To transmit symbols, such as letters of the alphabet, RU computer modems use two frequencies (1600 and 1800 Hz) and several amplitude levels. A transmission is sent for a period of time T (known as the transmission or baud interval) and equals the..
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