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1. Derive the necessary formula/method to determine the effective value or RMS of a triangular wave. Use either a similar method to the class example of the RMS determination of the sinusoidal wave or any other appropriate method.
2. Explain why the presence of harmonics in three phase power supplies causes degradation of the performance of A.C. machines such as motors and transformers.
Q. Two identical junction diodes whose volt-ampere relation is given by Equation in which I S = 0.1 µA, V T = 25 mV, and η = 2, are connected as shown in Figure. Determine the cu
Actual Loading Method This method is employed commonly for testing of single phase meters within laboratory. On a meter testing bench that is equipped along with several taps
a. Describe the meaning of standing wave ratio. What is the formula for it, if the load is purely resistive? Why is a high value of SWR often undesirable? b. Determine how the c
Charge density In a semiconductor
Q. With a suitable block circuit, show how linear sweep voltage is generated ? The above figure shows a basic sweep waveform generator. The switching action of the switch
A 500-hp, wye-connected, wound-rotor induction motor, when operated at rated voltage and frequency, develops its rated full-load output at a slip of 0.02; maximum torque of 2 times
Decoder A decoder is logic circuit that energizes a particular output line for each combination of input signal. Fig shown the block diagram logic diagram and fu
Q. Describe about digital communication systems fl A digital signal can be deflned as having any one of a finite number of discrete amplitudes at any given time. The signal coul
Q. A three-phase ac motor, used to drive a draft fan, is connected to a 60-Hz voltage supply. At noload, the speed is 1188 r/min; at full load, the speed drops to 1128 r/min. (a
At what velocity must a conductor 75 mm long cut a magnetic field of flux density 0.6 T if an e.m.f. of 9 V is to be induced in it? Suppose the conductor, the field and the directi
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