Chapter 8, Problem 8.23MCQ

A 12KW, 240V 1500RPM shunt generator has an armature resistance of .02 ohm and a shunt field resistance of 160 ohms. The stray power losses are 900W. Assuming a constant shunt field current, what (1) the efficiency at rated load and (2) the efficiency of the generator at half-rated load?

4. Consider the three circuits shown in Figure. Determine each output voltage for (i) V₁ = 3 V and (ii) VI = -5 V. 40 ΚΩ www ww 20 ΚΩ 10 ΚΩ (a) 01 να гля 40 ΚΩ www www 20 ΚΩ 10 ΚΩ ww 10 ΚΩ www (b) www 48 ΚΩ ww -0% 6 kQ 15 ΚΩ (c) ооо

Find the mathematical expression for the points 1 and 2 for this pratical AM-DSB/SC modulator

Question Two A generating station consisting of two generators, one of 20 MVA, 11 kV, 0.18 pu reactance with the unit transformer of 20 MVA, 11/132 kV, 0.08 pu reactance, another of 30 MVA, 11 kV, 0.18 pu reactance with the transformer of 30 MVA, 11/132 kV, 0.12 pu reactance, transmits power over double circuit 132-kV transmission line. Each line is having reactance of 120 ohms per phase. Determine the fault current supplied by the generators to a three-phase solid fault on the 132-kV bus-bar at the receiving end. Neglect pre-fault current and losses. Assume pre-fault generated voltages at rated value.

4v+9v+8v=-3v+6v',-5v, where vi and vo are the input and output voltage, respectively.

I decided to focus on the magnitude where I do the normalization on low and high pass and have the bandpass as dB(dB(decibel), with frequency cutoff, I manage to get accurate but have trouble controlling the frequency cutoff accurately and the bandbass isn't working properly. As such I need help.My Code:  % Define frequency range for the plot f = logspace(1, 5, 500); % Frequency range from 10 Hz to 100 kHz w = 2 * pi * f; % Angular frequency   % Parameters for the filters R = 1e3; % Resistance in ohms (1 kΩ) C = 1e-6; % Capacitance in farads (1 μF) L = 10e-3; % Inductance in henries (10 mH)   % Transfer functions H_low = 1 ./ (1 + 1i * w * R * C); % Low-pass filter H_high = (1i * w * R * C) ./ (1 + 1i * w * R * C); % High-pass filter H_band = (1i * w * R * C) ./ (1 + 1i * w * L / R + 1i * w * R * C); % Band-pass filter   % Cutoff frequency for RC filters (Low-pass and High-pass) f_cutoff_RC = 1 / (2 * pi * R * C);   % Band-pass filter cutoff frequencies f_lower_cutoff = 1 / (2 * pi *…

Please do NOT answer if you are going to use AI. Please give a proper solution.

P7.2 The capacitors in the circuit shown below have no energy stored in them and then switch "A" closes at time t=0. Switch "B" closes 2.5 milliseconds later. Find v(t) across the 6 μF capacitor for t≥ 0. 500 Ω B 4 µF 20 V 6 µF 7 Σ2 ΚΩ 25 mA + · με

Q1: If x[n] is a discrete signal and represented by the following equation, what is the value of x[0] and X[-2] Q2: {x[n]}={-0.2,2.2,1.1,0.2,-3.7,2.9,...} a- Assuming that a 5-bit ADC channel accepts analog input ranging from 0 to 4 volts, determine the following: 1- number of quantization levels; 2-step size of the quantizer or resolution; 3- quantization level when the analog voltage is 1.28 volts. 4- binary code produced by the ADC. 5- quantization error. b- Determine whether the linear system is time invariant or not? 1 1 y(n) = x(n) Q3: Evaluate the digital convolution of the following signals using Graphical method. Find: y(0) to y(3) Q4: 2, k = 0,1,2 2, k = 0 h(k) 0 1, k = 3,4 and x(k) elsewhere = 1, k = 1,2 0 elsewhere The temperature (in Kelvin) of an electronic component can be modelled using the following approximation: T(t) [293+15e-Ju(t) A digital thermometer is used to periodically record the component's temperature, taking a sample every 5 seconds. 1- Represent the…