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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
Determine the node voltage by using KCL: Determine the node voltage V and then current flowing through each element by using KCL. Solution Apply KCL at the node whose
Q. Why FET is a voltage sensitive device explain from the drain characteristics? The JFET consists of a thin layer of n-type material with two ohmic contacts,the source S and t
What are tightly coupled systems or closely coupled systems? In a tightly coupled systems the microprocessor (either coprocessor or independent processors) might be share a com
Revision of Basics Although it is assumed in this book that the reader has enough knowledge of various number systems ( binary, octal and hexadecimal and their relation
Determine currents in the circuits: Determine currents I 1 and I 2 in the given circuits by applying KVL. Solution We apply KVL for first loop : 10 = 1 I 1 + 1
National tariff policy: The Central Government notified the National Tariff Policy on January 6, 2006, for the power sector in line along with the Section 3 of the EA, 2003. Wi
what is cro ?
Q. Which of the 3 transistor configuration is best to use in cascade if maximum voltage gain is to be realized? The common collector configuration is not used for intermediate
High Level Language ( third Generation Language ) The difficulties of low level languages are overcome by high level languages. In assembly language mnemonics were used
Voltage divider bias: The voltage divider is made by using external resistors R 1 and R 2 . The voltage beyond than R 2 forward biases the emitter junction. Via prop
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