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a load consisting of induction motor is draming 80 kw from a 220 v ,60 hz power line of 0.72 lagging .find the capacitance of a capacitor required to raise the pf to 0.92
Design a circuit that has a low pass transfer function with a3dB band edge at 30Hz. you may use capacitors, inductors, and bothdependant and indepandant sources.
1)Why BJT is called a bipolar and current controlled device 2)What are the different modes of operation in BJT and in which region it act as an amplifier 3)Why Emitter is highly doped ,base lightly doped and collector moderately doped
Determine the transfer function of the second-order (2 poles) lowpass Butterworth filter with a 3 -dB cutoff frequency of 5 kHz. Design it using the Sallen-key Lowpass filter configuration, find all the values of the circuit element
The load on a 460-v, 60-Hz, Y-connected, balanced three phase source consists of three equal Y connected impedance of 100-j100 Ohms and three equal delta-connected impedance of 300-j300 Ohms.
Sketch the appropriate equivalent circuit and phaser diagram and, assuming step-down operation, determine (a) the magnetizing current and the core-loss component of exciting current; (b) the exciting current; (c) the no-load power factor; (d) the ..
Consider a system in which a data transfer over a bus takes 500 ns. Transfer of bus control in either direction, from processor to I/O device or vice versa, takes 250 ns. One of the I/O devices has a data transfer rate of 50 KB/s and employs DMA.
Consider a random variable that obeys a uniform desist and varies from 2 to 5. a). Determine the mean and variance of the random variable. b). what is probability that the random variable is between 2 and 3
When a sinusoidal signal is used to frequency modulate a VHF carrier, the required bandwidth is 200 kHz. It is desired to retain the same modulation index while reducing the necessary bandwidth to 100 kHz.
A power amplifier has a gain of 15 dB and an input level of 2 volts. Assuming that the input and output impedances are the same, what is the voltage level at the amplifier output
The machine takes three inputs in addition to the clock: countup, countdown, reset. The count advances by 1 when countup=1, decreases by 1 when countdown=1, and goes to 0 when reset=1. The output o1=1 when the count reaches 3.
A standard 12-V car battery has an ampere-hour rating of of 30 Ah, whereas a heavy-duty battery has a rating of 51 Ah. the ratio of available energy is 1.7 ratio. Find the percentage increase in available current for starting
The light from a cameras electronic flash is produced when a high voltage obtained by charging a capacitor is applied to electrodesin a xenon-filled flash bulb. (a) to what voltage would a 60-microfarad capacitor be charged by a6mA current lasting ..
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