Engineering, 25.09.2020 03:01 CalCDanG
Two wires of the same length and cross sectional area have finite but different E-field magnitudes inside them when the same current is flowing in each. The E-field magnitude in wire 1 is less than the field magnitude in wire 2. Select all of the following statements that are true based on this situation:
The voltage drop in wire 1 is the same as the voltage drop in wire 2
The conductivity of wire 1 is less than the conductivity in wire 2
There is not enough information given in the problem to definitely determine the answer to the other 9 statements.
The power dissipation in wire 1 is more than the power dissipation in wire 2
The conductivity of wire 1 is more than the conductivity in wire 2
The conductivity of wire 1 is the same as the conductivity in wire 2
The power dissipation in wire 1 is less than the power dissipation in wire 2
The power dissipation in wire 1 is the same as the power dissipation in wire 2
The voltage drop in wire 1 is greater than the voltage drop in wire 2
The voltage drop in wire 1 is less than the voltage drop in wire 2
Answers: 1
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Engineering, 04.07.2019 18:20
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Engineering, 04.07.2019 18:20
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.
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