Engineering, 05.05.2020 18:44, devenybates
An inductor is connected to a voltage source and it is found that it has a time constant, t. When a 10-ohm resistor is placed in series with the inductor, the time constant becomes t/2. A pure inductance of 30 mH is placed in series with the original inductor and the 10-ohm resistor, the time constant is t. What are the values of the original inductors (a) inductance, (b) internal resistance
Answers: 1
Engineering, 04.07.2019 18:20, xcapo1x
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.
Answers: 2
Engineering, 04.07.2019 18:20, rhussein6452
Wiy doeres rere okhn a pump whon working betwon the same pressure range?
Answers: 2
Engineering, 04.07.2019 19:10, nayi2002
The short distance from the objective lens to the object causes problems at high magnification. which of the following is the most serious? a. cleaning the object surface b. positioning the object c. reflection from the object surface. d. illumination of the object
Answers: 1
An inductor is connected to a voltage source and it is found that it has a time constant, t. When a...
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