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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. Explain digital frequency meter. or Explain principle of digital frequency meter and discuss utility of time base selector with suitable diagrams. Sol. Digital Fr
Octal to binary Conversion Conversion form octal to binary is the reverse of this process. Express each octal digit in three bit binary equivalent. Ex. Convert 3576
how harmonics shows effect on power systems?
Describe the effect of following parameters on working rate and accuracy of material removal in AJM. (i) Grain size (ii) Stand off distance (iii) Jet velocity. Draw sch
how to calculate the sending line voltage
Advantages of High level Languages a.It is easy to learn write and debug the program written in high level languages. b.Programs are more legible as compared to m
For the network shown in Figure, find the current delivered by the 10-V source and the voltage across the 3- resistor by means of mesh-current analysis.
Q. Fixed Voltage Regulators ? Positive voltage regulator series with seven voltage options - IC 7800 Series The 7800 series consists of three - terminal positive volta
Give a few applications of superconductors. Also give three applications of superconductors. Application of superconductors in Electrical and Electronic Engineering (i) The
what is polar diagram?
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