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For a 45-kVA, three-phase, wye-connected, 220- V synchronous machine at rated armature current, the short-circuit load loss (total for three phases) is 1.80 kWat a temperature of 25°C. The dc resistance of the armature at this temperature is 0.0335 per phase. Compute the effective armature ac resistance in per unit and in ohms per phase at 25°C.
How does a diode work! what is its main formulas?
Q. Sketch the asymptotic Bode plots for the following loop-gain functions, and find the approximate values of gain and phase margins in each case.
Q. Explain the classification of amplifiers on the biasing conditions? Based on the amount of transistor bias and amplitude of the input signal, amplifiers can be classified as
can you please briefly explain about significance of the word direction in vectors with some valid points
Q. With a neat circuit diagram explain the working of a Hartley oscillator using an npn transistor and obtain the expression for oscillation frequency and for minimum gain for sust
Fast Recovery diodes The fast recovery diodes low recovery times. These diodes are manufactured by diffusion. They are used in converter circuits where the speed of reco
Q. A practical current source is represented by an ideal current source of 200 mA along with a shunt internal source resistance of 12 k. Determine the percentage drop in load curr
A rifle with a mass of 3,5 kg fires a bullei with a mass of 120 g with a muzzle velocity of 420 mls. Calculate the following: 1.4.''l The momentum before the rifle was fired ''1.4.
One circuit has resistor 40? connected in series with inductor 15H and dc voltage 220V. Calculate: i) Time constant ii) Current at time (i) iii) Current at time 0.0
Electric current Electric current is a flow of electrons. Each electron carries a very small amount of negative charge (1.6 x 10 -19 coulombs) A current
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