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Q. A 75-kVA transformer has an iron loss of 1 kW and a full-load copper loss of 1 kW. If the transformer operates on the following load cycle, determine the all-day efficiency:
8 hours full load at unity power factor
8 hours no load
8 hours one-half full load at unity power factor
Flicker noise: I’d like to plot the graph of the flicker noise found in the data sheet for the amplifier (will be provided later) and also generate the equation for that graph sho
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Q. A commercial FMstation broadcasts a signal with 180-kHz bandwidth when |f(t)|max = 2 V. Find kFM for the modulator if the spectral extent of f (t) is 30 kHz, by using Carson's r
Define Hysteresis Hysteresis is the 'lagging' effect of flux density B whenever there are changes in the magnetic field strength H. When an initially unmagnetized ferromagnetic
what are the functions of interpolar winding and compensating winding?
Explain ferroelectricity. Ferroelectricity: - Materials of ferroelectric have a high dielectric constant that is non-linear that is, this depends to a considerable extent on t
Explain the construction and working of Calomel electrode
Variable Frequency Systems In this systems the chopping period T will varying but either Ton is kept constant or T off kept constant. In any case the off time T off w
#What are the types of Negative Feedback Amplifier?
Q. Write a note on emitter follower? The emitter follower (EF) configuration is shown The emitter follower (EF) configuration is shown The EF amp has a voltag
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