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Q. A 75-kVA transformer has an iron loss of 1 kW and a full-load copper loss of 1 kW. If the transformer operates on the following load cycle, determine the all-day efficiency:
8 hours full load at unity power factor
8 hours no load
8 hours one-half full load at unity power factor
The field resistance of a dc machine is 50 ohm at 20 o C. The resistance increases to 55 ohm at 50 o C. Find the temperature coefficient of the resistance material. Ans: Sol
kindly tell me which text book is usefull forlearn the basic electricle.
Forth Generation VLSI technology of IC made it possible to design the complete circuit of ALU Arithmetic logic unit and cu ( Control Unit ) within single chip which
Define Sampling below the Nyquist Rate? A further reduction of the sampling frequency will reason one sample to be taken each period. The Case 3 plot depicts the effect of this
Q. Explain about Capital stock? Capital stock illustrates the amount of the owners' investment in the corporation.
Q. Describe the construction of a two stage RC coupled amplifier with diagram. A cascaded arrangement of common-emitter transistor stages is shown above. The output Y1 of
Q. What is the need of the resistance used in a clipper? Resistor is used in a clipper to limit the current through the diode. To avoid the damage due to excessive current thro
A cylindrical shell with flat ends is of 1.5 m Internal diameter and 4 m length. It is subjected to an internal pressure of 300 N/cm 2 . The principal stress is not to exceed 15 K
Given: R 1 = R 3 = 1 k_, R 2 = 100 k_ and k = 0.1 A/V, and step-up transformer turns ratio is 10. a) Find the value of the load resistor RL that would maximize the power
Which clipper would you prefer between the series and the shunt clipper? Why?
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