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With the help of neat circuit diagram, describe swinburne’s test and deduce the relations for efficiency (both for generator and motor) also write down the merits and demerits of this method.
Describe with the help of diagram the concept of programmed Input-Output.
Explain critical field resistance of dc shunt generator in detail.
Explain why it is necessary that the incoming alternator frequency is greater than the bus bar?
Write down the factors on which speed of d.c.motor depends.
What do you mean by residual magnetism? Illustrate where it is important?
A 3-phase 50 kW ,4-pole ,50 Hz induction motor has a winding (ac) designed for delta connection . The winding has 24 conductors per slot arranged in 60 slots. Determine the speed and peak value of t
Describe the voltage available from each and every cell in the lead acid battery?
Write down the equation for emf generated in D.C.machine.
Draw and explain the general block diagram of an electromechanical energy conversion device.
What do you mean by multiply excited magnetic field system?
What is the energy conversion medium in the singly-excited magnetic field system?
Draw and describe the no load phasor diagram of a single phase transformer.
Explain the purpose of laminating the core in a transformer.
Write down the equation for energy density for magnetic circuit. Write down the factors on which hysteresis loss depends.
What do you understand by binary symmetric channel? Deduce channel capacity formula for symmetric channel.
All through your watch, if you find a under piston temperature high alarm, explain what will you do?
Deduce noise power spectral density of FM demodulation and describe its performance with suitable diagram.
Write down the advantages of superheterodyne receiver.
Deduce the noise figure for cascade stages.
What do you mean by flash point, fire-point and auto ignition temperature?
Describe the working of reactance tube modulator in detail and deduce the expression to illustrate how variation of amplitude of input signal varies the frequency of the output signal of the modulat
Describe modulation index for the AM wave.
What do you mean by Static and dynamic stability?
What is the basic architecture in IEEE 802.11 system?