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A 240kW 500 Volt 1750rpm separately excited dc generator has an overall efficiency of 94%. The shunt field resistance is 60ohms, and the rated current is 5amps. The I^2R loss in the armature is 0.023pu. Calculate the armature current, total losses in the machine, and the I^2R losses in the armature.
Consider a network with a driving-impedance Z. (1) Find expression for P and Q. (2) Find p(t) in terms of P and Q. (3) Suppose that the network is a series RLC. Interpret the result in part (2).
algorithms to show the differences in the intra prediction in the h.264 and hevc coding standards. it should indicate how the intraprediction in the two coding standards makes a difference in their efficiency.
Discuss the sequence of actions that occur in the operation of an automatic washing machine. Indicate which actions are time-driven and which actions are event-driven.
Calculate the unit step response of the DT systems with the following impulse responses: a-) h[k]= u[k+6]- u[k-10] b-) h[k]= 3^k- u[-k]
An FM signal being transmitted is represented by eFM(t) = 50Sin((2)(95.1)(106)t+2Sin((2)(10)(103)t)). If the antenna impedance is 75 , determine: (a) total power in FM signal and (b) FM modulation index.
An airplane has a mass of 3*10^4 kg and takes off under the influence of a constant net force of 35 000 N. What is the net force that acts on the plane's 80-kg pilot, assuming that he has the same acceleration as the plane
design a 7-tap band-pass FIR filter with linear phase response. The lower cutoff frequency is 2,500 Hz, and upper cutoff frequency is 4000 Hz. The sampling frequency is 10,000 Hz. What is the filter impulse response
A radar transmits a monotone pulse of 5-s duration. Suppose the radar were redesigned so that the same pulse envelope is frequency modulated with linear FM over 100 MHz. (a) What is the possible new range resolution
What is the modulation used to transmit HDTV signals over the air in US terrestrial broadcasting? What is the transmitted bit rate and the compression method?
A sequential circuit with three D-type flip-flops Y1Y2Y3, input X and output Z is defined with the following input/output functions: D 1 = X Y 3 + X Y 1 Y 3 D 2 = X ( Y 3 + Y 2 ) + X Y 2 Y 3 D 3 = X Y 3 + Y 2 Y 3 Z = Y3
To analyze electric circuits, it is often necessary to solve simultaneous equations. To find the voltages Va, Vb, and Vc at nodes a, b, and c, the equations are 2(Va-Vb) + 5(Va-Vc) - e^(-t) =0 2(Vb-Vc) + 2Vb + 3(Vb-Vc) =0
1) A 1.5H inductor has a constant current of 2.5A. a) find the energy that it holds b) what is its voltage c) what is its energy after its current drops to zero and stays zero What power is dissipated when a 20 olhm resistor is connected to it
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