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A four pole, 60Hz, 10Hp, 460V, three phase induction motor operates at 1750 r/min when fully loaded and its rated frequency and rated voltage. Determine (a) synchronous speed; (b) slip speed; (c) per unit slip
If the total power amplification through the receiver stages is G_R find the output power of the receiver. If the noise power at the output is identical to the noise power at the input of the receiver, find the NF for the receiver.
In a certain n-type region of a semiconductor in thermal equilibrium, there is a hole concentration with the following spatial distribution: po(x)=103(1 9×103x)cm 3 for0 x 10 4 withxincm Assume that in this region, the electron mobility and hole mob..
Discuss why phasor analysis can only be performed on single-frequency circuits. For multiple frequencies what type of analysis must be performed Discuss the advantages of transforming time-domain circuits into the corresponding frequency domain.
A 460-V, four-pole, 75-hp, 60-Hz, Y connected, three phase induction motor develops its full load induced torque at 1.2 percent slip when operating at 60 Hz and 460 V. The per phase circuit model impedances of the motor are
explain the use of the Op Amp as a difference amplifier and as a comparator. What are the distinctions between the ways each one is used.
A gallium-arsenide crystal at 200K containing only donor impurities was found to have hole concentration to be one fifth that of the electron concentration. Determine the actual carrier concentrations and the doping concentration of the crystal.
Design an inverting amplifier with a gain of -12 that has an input impedance that is larger than 100K that can drive a 2K resistive load using bipolar transistors. Verify your design analytically and with SPICE.
1. Calculate the Fourier transform of f(t)=5 sinc ([t-0.2]/2), and graph the magnitude and phase as function of f. 2. A military satellite uses 10 GHz for the downlink frequency. The distance to the satellite is approximately 36000 km.
3. Which of the following is not an advantage of FETs over BJTs in RF amplifier usage. A) Their input impedance does not load down the Q of the circuit preceding the FET stage. B) The availability of dual gate FETs provides an isolated injection poin..
A circuit has a Thevenin equivalent circuit with Vth = 12 Volts and Rth = 50 Ohms. The load resistance that gives maximum power transfer is :A 50 Ohm resistor is connected in parallel with a 100 Ohm resistor. Which of the following statements are tr..
A 20-m3 tank contains nitrogen at 23 C and 600 kPa. Some nitrogen is allowed to escape until the pressure drops to 400 kPa and the temperature to 20 C. Determine the amount of nitrogen gas that has escaped in kg. How much in this in Kmoles
Given R = 50Kohm and C = 100nF what is the frequency of oscillation Given a required frequency of oscillation of f = 10kHz and R = 8kohm, what should the value of C be
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