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Explain about the Heat Extraction?
a) A body of mass M has a temperature-independent precise heat C. If the body is heated reversibly from a temperature Ti to a temperature Tf what is the change in its entropy?
b) Two such bodies are primarily at temperatures of 100 K and 400 K. A reversible engine is used to take out heat with the hotter body as a source and the cooler body as a sink. What is the maximum quantity of heat that can be extracted in units of MC?
c) The specific heat of water is C= 402j/g k and its density is 1g/cm3 Calculate the maximum useful work that can be extracted, using as a source 103 m3 of water at 100°C and a lake of temperature 10°C as a sink.
Core losses or Iron losses: These losses having of hysteresis and eddy current losses, which happen due to pulsation of flux in the core. These losses depend upon the maximum flux
MOTION EXAM WITH ANSWERS
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Q. Illustrate how do you compute shaft power? Answer:- Shaft power P = (2(pi) * (angular Speed in rpm) * (Torque at shaft))/ 60 Torque of a solid shaft is specified by
Experiment with wat er Suspend a tin can about 8 cm deep and 12 cm in diameter as shown in the diagram. Pour about 3 cm of water into the can and twist the drill. Observe what
‘q' is a path function. Under what situations it will be a state function? Define and illustrate heterogeneous and homogenous systems with examples.
Magnus effect: In a moving fluid a rotating cylinder drags some of the fluid around with it, in its direction of rotation. This enhances the speed in that region, and therefor
Length contraction
Explain Resistance Resistance: Interaction among flowing charges and atoms in electric circuit which resists (slows) current flow SI units: volt per ampere ≡ ohm (Ω)
the conical pendulum explzin in detail?
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