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Q. A 100-kVA, 2300:230-V, 60-Hz, single-phase transformer has the following parameters: R1 = 0.30 , R2 = 0.003 , RC1 = 4.5k, X1 = 0.65 , X2 = 0.0065 , and Xm1 = 1.0k, where subscripts 1 and 2 refer to high-voltage and low-voltage sides, respectively. Set up the equivalent T-circuit of the transformer and determine the input current, input voltage, input power, and power factor when the transformer is delivering 75 kW at 230 V and 0.85 lagging power factor.
Q Using a combination of Uni-selectors and two motion selectors, draw a diagram of thousand line exchange and illustrate its working. Ans: The diagram for such an exchange i
Q. What is Traffic Engineering? Traffic engineering provides the foundation for analysis and design of telecommunication network to carry a given traffic at a particular loss p
Importance: The transistor is the main active component in practically all current electronics, and is considered through many to be one of the greatest inventions of the 20 t
Q. Justify disadvantages and advantages of packet switching over circuit switching? Ans: Comparison of circuit switching and packet switching showing disadvantages and advan
(a) For a series RLC resonant circuit, find an expression for the voltage across the resistance VR and obtain the ratio V R /V S , where V S is the applied voltage. Identify the e
Ask question #Minimum 100 words accepteddelay line in cro#
Q. Sampled-data and digital control systems? These differ fromthe continuous-data systems in that the signals at one or more points of the system are in the form of either a pu
1. The circuit shown below is a DC charging and discharging circuit. a. At t = 0 sec, switch S1 is thrown to position 1 ("pos1"). Write the mathematical expressions for V
Q. Input offset current of operational amplifier? The adverse effect of the input bias current mentioned would be nulli?ed if both inputs were connected to equal resistances (o
1. A modi?ed NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; invert- ing bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make
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