A Carnot engine operates between reservoirs at 40°C and 200°C. If 10 kW of power is produced, the rejected heat is nearest:
A) 10.9 kJ/s
B) 14.1 kJ/s
C) 16.3 kJ/s
D) 19.6 kJ/s
D) 19.6 kJ/s
Equate the expression for the efficiency of a Carnot engine to the efficiency in general:
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Consider the following graph:
The rightward parallel shift in the graph may be best explained as:
A) The price of Coca-Cola rose.
B) The price of Pepsi fell.
C) Total income available to the consumer fell.
D) Total income available to the consumer rose.
¿Cuál de los siguientes es un beneficio que se deriva de usar un impulsor de frecuencia ajustable (AFD) con modulación de la magnitud del impulso (PWM) en lugar de un AFD con SCR?
a. Arranque controlado b. Menos problemas de armónicos y EMI c. Límite de par motor ajustable d. Velocidad de funcionamiento ajustable
Describe the effect of changing the process to one that treats building as a whole system
What will be an ideal response?
Which statement is false with regard to CMOS?
A) CMOS circuits need almost no input current. B) CMOS circuits draw much less supply current than BJT logic circuits. C) CMOS requires higher voltages than BJT logic circuits. D) CMOS circuits are less complex than BJT logic circuits.