Engineering, 11.12.2019 18:31 Sumysumy
Acircuit consists of a resistor r in series with an inductor l. when subject to a step input voltage v at time t=0 the differential equation for the system is (di/dt)+(r/l)i=(v/l) what is: (a) the solution for this differential equation, (b) the time constant, (c) the steady state current i?
Answers: 3
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Fluids at rest possess no flow energy. a)- true b)- false
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Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
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Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
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Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k
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Acircuit consists of a resistor r in series with an inductor l. when subject to a step input voltage...
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