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Q. Consider a full-wave single-phase bridge recti?er circuit with dc motor load, as shown in Figure (a). Let the transformer turns ratio be unity.
Let the load be such that the motor draws a ripple free armature current of Ia. Given the waveforms for the input current and input voltage of the recti?er, (b), determine: (i) harmonic factor HF of the input current, and (ii) input power factor PF of the recti?er.
Q. Ac measurements with constant voltage amplitude reveal that the total core loss of a certain magnetic circuit is 10 W at f = 50 Hz, and 13 Wat f = 60 Hz. Find the total core los
Q. With a neat circuit diagram explain the working of a Hartley oscillator using an npn transistor and obtain the expression for oscillation frequency and for minimum gain for sust
1.Describe the technological process of crystallization. 2. Compose the requirements to developed crystallization model.stion..
Q. How oscillations start up in an oscillator? The noise voltage produced due to the random motion of electrons in resistors or in active devices provides the starting voltage
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File Flops The flip flop is a one storage biteable device. The basic bistable device stores a binary of inputs value. the flip flops are categorized according to the nu
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