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A 240V, short shunt, cumulative compound generator is rated at 100A. The shunt field current is 3A. It has an armature resistance of 50 milli-ohm, a series field resistance of 10 milli-ohm a field diverter resistance of 50 milli-ohm and a rotational loss of 2kW. The generator is connected to the load via a feeder whose resistance is 30 milli-ohm. When the generator is supplying the full load at the voltage, determine the rotational loss.
Given an AC input voltage of Vrms = 200Vrms and a sinusoidal frequency of omega = 120pi rad/sec, determine the following: V1peak (peak value of AC input voltage) V1(peak-to-Vpeak )(peak to peak value of AC input voltage) Frequency of input voltage V..
An input signal of 10V at 0o and a frequency of 1592 Hz is applied to a series RLC circuit with resistor R = 1000 ohm, inductor L = 0.2 H, and capacitor C = 0.1 F. what is The value of the total circuit complex impedance
A 440 Vrms (line to line voltage) three phase induction motor runs at 1150 rpm driving a load requiring 15Nm of torque. The line current is 3.4 at a power factor of 80% lagging. Find the input power in Kw, The output power in Kw, and the efficiency..
An unknown semiconductor has Eg = 1.1 eV and Nc = Nv. It is doped with 10^15 cm^-3 donors where the donor level is 0.2 eV below Ec. Given that Ef is 0.25 eV below Ec, calculate ni and the concentration of electrons and holes in the semiconductor ..
An AM signal has an unmodulated carrier voltage VC = 10VP, a load resistance of RL = 10, and a modulation index of m = 1. Determine Write down the frequency components of the received AM signal.
A single-loop negative feedback system has the loop transfer equation: L(s) = Gc(s)G(s) = K(s + 2)2 / (s(s2 + 1)(s + 8)) a. Sketch the root locus for 0 K infinity to indicate the significant features of the locus.
The total charge accumulated by a certain device is given by as a function of timeby q=18t2-2t4 ( in SI units). What is the max charge in the interval 0
Two amplifiers are cascaded, one with a voltage gain of 6 db and the other with a voltage gain of 4. if 1 V is applied at the input of the first amplifier, what is the voltage at the output of the second amplifier
A 10kVA, 200/400V 50Hz single-phase transformer gave the following test results. O/C test: 200V, 1.3A, 120W, on l.v. side. S/C test: 22V, 30A, 200W on h.v. side. (a) Calculate the magnetizing current and the component corresponding to core loss at ..
A superheterodyning FM receiver was originally designed and built to operate in the US only. The FM broadcasting band in the US is from 87.5 MHz to 108 MHz. The intermediate frequency of the receiver is fI = 10.7 MHz. This receiver has a poor RF B..
Design your circuit so that the STOP push button must be pressed before the motor can be switched direction Also incorporated a 5 second delay to inhibit restart after the STOP push button has been pressed Green light
Wires manufactured for use in a computer system are specified to hve resistances between .12 and .14 ohms. The actual measured resistances of the wires produced by company A have a normal probability distribution with mean .11 ohm
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