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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
Example of clamper circuits: Example of clamper circuits are as follow Voltage multiplier circuit: voltage circuit is employed to maintain a relatively low transformer pe
Operation of octal to binary encoder
Question 1 Define the term telecommunication? Discuss briefly the various uses of telecommunication in daily life Question 2 Explain the powers and functions of the TRAI
1) Assume that we are given the continuous-time signal xa (t) = xa1 (t) + xa2 (t) + xa3 (t), where, xa1 (t) = 2 + cos3 (2pf1 t + p 3 ) + 2 cos(2pf2 t), xa2 (t) = 2 cos(2pf3 t)
A conductor 300 mm long moves at a uniform speed of 4 m/s at right-angles to a uniform magnetic field of flux density 1.25 T. Verify the current flowing in the conductor when (
Q. Write a note on the application of emitter-follower? An emitter follower can serve as a buffer for a voltage source. The voltage divider at left is a poor voltage source bec
Name the Effects of electric current There are three Effects of electric current:- A) magnetic effect B) chemical effect C) heating effect
Q. Counting to moduli other than 2 n is a frequent requirement, the most common being to count through the binary-coded decimal (BCD) 8421 sequence. All that is required is a four
We now have an equation for the magnetic field H at a distance r from a conductor carrying a current I amps And Ampere's experiments show that the force per unit lengthbetw
Q. Explain the working principle of a Q meter. Also explain the factors that cause errors during a Q factor measurement. Ans. Working Principle of Q Meter: the q meter is
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