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Q. A practical current source is represented by an ideal current source of 200 mA along with a shunt internal source resistance of 12 k. Determine the percentage drop in load current with respect to the source short-circuit current when a 200- load is connected to the practical source.
Q. A balanced delta-connected load with a per-phase impedance of 12 + j9 is supplied by a 173-V, 60-Hz three-phase source. (a) Determine the line current, the power factor, th
Q. What is the requirement of a hybrid in telephone networks? How does it work? Ans: Digital exchanges require receive and transmit signals on separate two-wire circuits. Th
Discuss the role of a bus arbiter in a multiprocessor configuration. Bus arbiter: It functions to resolve priority among bus masters and permits only one device at a time to
V- I Characteristics When the peak value of applied voltage is less than the break over voltage of triac and no signal is applied to the triac it will block both pos
Give the names of four alloys along with their composition, which are used for making heater and thermocouple elements. Constantan or Eureka {(55 to 60 percent) Cu, (45 to 40 p
Switching Characteristics The switching characteristics of power MOSFET the delay time and rise time are responsible to remove the effect of internal capacitance of the devi
How to work ring counter?
Q. The first four harmonics in the Fourier series of current waveform given by where I m = 15 mA and T = 1 ms. If such a current is applied to a parallel combination of R
Q. The magnitude spectrum of a continuous image is as given below. a) Sketch the frequency response of the sampled spectrum if ωs =1.5 ωm along x and 3ωm along y directions
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
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