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Q. A two-winding, single-phase transformer rated 3 kVA, 220:110 V, 60 Hz is connected as an autotransformer to transform a line input voltage of 330 V to a line output voltage of 110 V and to deliver a load of 2 kWat 0.8 lagging power factor. Draw the schematic diagram of the arrangement, label all the currents and voltages, and calculate all the quantities involved.
Formulars.
A three-phase, wye-connected, 2300-V, 60-Hz, round-rotor synchronous motor has a syn- chronous reactance of 2 per phase and negligible armature resistance. (a) If the motor tak
Q. What are the different types of MOSFET transistors ? The metal-oxide semiconductor field-effect transistor (MOSFET) is a three-terminal active device which has many applicat
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Explain Hall effect. Consider a slab of material wherein there is a current density J resulting by an applied electric field Ex in the x- direction. The electrons will drift al
Q. For the coupled inductors shown in Figure, neglecting the coil resistances, write the volt-ampere relations.
Q. Give the classification of Oscillators? Depending on the type of the output waveform, oscillators are classified as sinusoidal (or harmonic) oscillators and relaxation osci
what are accidents in an organisation
Define Smoothing the Output? The output of a DAC is stepped, such as the analog waveforms which were sampled and held. This stepped, or staircase effect is a distortion, and it
excitation in an ac generator
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