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Q. Briefly explain about Wye-delta transformation?
Certain network configurations cannot be reduced or simplified by series-parallel combinations alone. In some such cases wye-delta (Y- ) transformation can be used to replace three resistors in wye configuration by three resistors in delta configuration, or vice versa, so that the networks are equivalent in so far as the terminals (A, B, C) are concerned, as shown in Figure. For equivalence, it can be shown that
For the simple case when RA = RB = RC = RY, and RAB = RBC = RCA = R , Equations (1) and 2) become
Module of the rated currents - transformer: The transformer of the Face(Figure) 2 is a transformer of type Delta-Y (the neutral of Y is grounded). The rated output is of 1500
Explain n-type and p-type semiconductors. n - Type semiconductor: If small amount of pentavalent impurity (group V elements) is added to a pure semiconductor giving a large
Q. What do you mean by interference? An information-bearing signal often becomes contaminated by externally generated interference and noise and/or by internally generated nois
A system contains an amplifier with a gain of 10 offering the armature voltage for a motor which provides an output speed which is proportional to the armature voltage, the constan
Q. In the circuit shown in Figure the switch opens at t = 0. Develop and execute a P Spice program to solve for v(t), and use PROBE to obtain a plot of v(t). Hint: Use the follo
i would like to construct a colpitts oscillator using a series lc tank circuit as a feedback. the circuit will have a frequency of 150 Khz and it will drop when varying the value o
Q. Show Balanced three-phase loads? Three-phase loads can be connected in either wye (also known as star or Y) or delta (otherwise known as mesh or ). If the load impedances i
Q. What are the advantages of the n-channel MOSFET over the p-channel? The main advantage of the n-channel MOSFET over the p-channel is due to the fact that charge carriers in
ADD Instruction Op code format of ADD instruction is Replace the three bit code of the register R from to obtain the op code of the required ADD instruction . op co
Q. Define Number Systems? A number system, in general, is an ordered set of symbols (digits) with relationships defined for addition, subtraction, multiplication, and division.
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