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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
Explain the basic working principle of ultrasonic machining with the help of diagram. What are the different kinds of tool materials explain, tool holders are used in ultrasonic
Q. Do as directed. a) Hexadecimal addition: 101 + ABC b) (43.25) 10-(89.75) 10 using 1's Complement c) Octal Subtraction 123-777 d) (123)6 + (435)6 = ( ? )6 e) ABC
FET Parameters A basic, low-frequency hybrid-pi model for the MOSFET is displayed in figure. The several parameters are as follows. is the transconductance in siemens
Find the Fourier series as far as the third harmonic, to represent the periodic function y, given by the values in the following table. x 0 o 30
Q. Gate source cut off voltage? It is the gate source voltage where the channel is completely cut off and the drain current becomes zero.It is interesting to note that the valu
Q. Two shunt generators operate in parallel to supply a total load current of 3000 A. Each machine has an armature resistance of 0.05and a field resistance of 100. If the generat
Q. From a three-phase, 60-Hz system, through a motor-generator set consisting of two directly coupled synchronous machines, electric power is supplied to a three-phase, 50-Hz syste
Energy stored in a magnetic field Consider a circuit consisting of a voltage supply, switch, resistor and a coil of N turns wound on a toroid of length l, all in series
Microprocessor 1. Write an assembly language program to find the highest among two numbers. 2. Draw and illustrate the internal architecture of 8085 briefly. 3. What is t
Question: a) Describe two mechanisms by which electrons can be excited from the valence band to the conduction band? b) Given that the direct-band gap energy for Gallium N
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