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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
Q. A Silicon Transistor Whose Common Emitter Output Characteristics Are Shown In Dig Is Used In The Circuit With V cc =22.5v, R c =5.6k, R e =1k, R 2 =10k, And R 1 =90
Q. Basic definition of electromagnetism? A basic understanding of electromagnetism is essential to the study of electrical engineering because it is the key to the operation of
with a simple circuit,explain the construction of Direct Reading Probe of a cathode ray oscilloscope
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
Q. A 15-kVA, 2200:220-V, two-winding, single- phase transformer is connected as an autotrans- former to step up voltage from 220 V to 2420 V. Without exceeding the rated current of
factors affecting resistance
advantages of superposition theorem
Q. Explain the different types of probes used in cathode Ray Oscilloscope (CRO). Sol. probes: The probe performs the very important function of connecting the test circuit
Explain the Parallel In - Parallel Out Shift Registers? For "parallel in - parallel out" shift registers all data bits show on the parallel outputs immediately following the si
what is the digital logic circuit for binary divider?
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