Engineering, 19.02.2021 17:10 Zshotgun33
The reverse saturation current for a Si diode is A at room temperature (25 oC). The diode is then moved to a different thermal environment and the reverse saturation current changes to A. Estimate the temperature in oC of the new environment. Hint: changes with a factor 2 for every 10 oC change in temperature.
Answers: 2
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:20
An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.
Answers: 3
Engineering, 04.07.2019 18:20
Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg
Answers: 2
Engineering, 04.07.2019 19:10
Ahelical coil spring has a mean diameter of 50 mm, a wire diameter of 5.5 mm and is wound with a pitch of 10 mm. the spring steel has an ultimate strength of 1250 mpa. find the force needed to compress the spring solid and the wire stress in this condition. state whether the spring will return to its initial length.
Answers: 1
The reverse saturation current for a Si diode is A at room temperature (25 oC). The diode is then mo...
History, 31.07.2019 10:30
Physics, 31.07.2019 10:30
Mathematics, 31.07.2019 10:30
Physics, 31.07.2019 10:30
Spanish, 31.07.2019 10:30
Biology, 31.07.2019 10:30
History, 31.07.2019 10:30
English, 31.07.2019 10:30
Computers and Technology, 31.07.2019 10:30
Physics, 31.07.2019 10:30
Physics, 31.07.2019 10:30