A useful application that exploits the open-loop characteristics of op-amps is known as a comparator. One particularly simple example, known as a window comparator, is shown in Figure P15.66(a) and (b). Show that vo = 0 whenever Vlow < vin < Vhigh and that vo = +V otherwise.
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IDENTIFY TEST PROCESS SYMBOLS AND DIAGRAMS
A PN junction diode is most commonly used as a ____.
a. fast-acting switch b. light source c. voltage regulator d. rectifier
When a wheel seal fails and saturates a shoe type brake, which of the following should be performed?
A. wipe the oil off the friction facings with petroleum solvent B. pressure wash the shoes and spider assembly C. replace the brake shoes on the affected brake D. replace the brake shoes on both ends of the affected axle
Water conditions that must be monitored to keep a cooling tower system working properly include:
A) pH, mineral content, and biological growth. B) Incoming water pressure, sump water level, and sump water pump inlet pressure. C) Isothermal capacity, density, and opacity. D) Ambient temperature and relative humidity.