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In a 110 V compound generator, the resistance of the armature, shunt and series windings are 0.06, 25 and 0.05 W respectively, The load consists of 200 lamps each rated at 55 Ω, 100 V. Find the emf and armature current, when the machine is connected for
(a) long shunt
(b) short shunt
(c) How will the ampereturns of the series windings be changed, if in
(a) a diverter of resistance 0.1 Ω is connected across the series field? Ignore armature reaction and brush voltage drop.
stochastic message signal, m(t), is transmitted down a (noiseless) cable channel by PCM, using an 8-bit code. If the ambient signal is equally likely to lie anywhere between its two extremes, (+/- mp), calculate the ration of the mean squared sign..
Consider a BPSK signal where each bit is represented by a triangular pulse with width T and height A. What is the "energy per bit" for this BPSK pulse with A=1V and T=0.002s
Draw a graph of V=IR for R=300ohms over the domain -3mA
Design a prototyping system of battery management systems with fully controllable bi-directional power electronic converters
A binary data stream needs to be transmitted at 5 Mbit/s by means of binary signaling. To reduce ISI, a cosine roll-off pulse of roll-factor r = 0.25 will be used. Determine the minimum required bandwidth for this transmission
the current flowing through a circuit is it4t3a. how much charge passes through the circuit element between 0 and 2
task 11 describe the elements of communication systems2 explain the characteristics of electromagnetic waves and their
Review of available DC circuit breaker technology for EV applications. Limitation and their principle of operation and implementation of a simulation model of the selected DC circuit breaker.
The time has come for XelPharm to expand. The board of directors has purchased another warehouse for a second distribution facility. It's located in an industrial area, about eight miles from the company's headquarters.
The NF (dB) is defined as 10log(SNRin/SNRout) - in the unit of dB. If we are given the values of SNRin and SNRout in dB unit, how do we calculate NF (dB) in terms of dB, and how do we calculate NF in term of a pure ratio
A, B,C and D are members of the board of trustees of an investment company. Decisions are made by the following criterions. A BUY order is placed if: · A, B and D vote no and C votes yes, · Or A and C vote no and rest vote yes,
A system has a characteristic equation: q(s) = s3 + 20s2 + 5s + 100 = 0 Determine whether the system is stable using the Routh-Hurwitz criterion. Determine the roots of the characteristic equation.
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