A heating element having a resistance (at its operating temperature) of 148 is connected to a battery having an emf of 523 V and unknown internal resistance.
It is found that thermal energy is being generated in the resistance of the heating element at a rate of 66.0 W. What is the rate at which thermal energy is being generated in the internal resistance of the battery?
Question 2
Suppose that the Department of Energy develops a new reversible engine that has a coefficient of performance (COP) of 4.0 when operated as a refrigerator and a COP of 5.0 when operated as a thermodynamic pump.
What is its thermal efficiency when operated as a thermodynamic engine doing work? A) 10
B) 20
C) 25
D) 45
E) 80
The relationship between air temperature and two measures of water vapour saturation of air.
Cardiac pacemaker. The pacemaker device is implanted beneath the skin near the heart, and the electr
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A track inside an ignition coil is not a short, but rather it is a low-resistance path or hole that ...
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