An RC circuit can be used as a filter to eliminate selected frequencies
Indicate whether the statement is true or false
TRUE
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A Hall-effect switch is being analyzed on a lab scope. The high part of the signal measures 5.0 volts. Ideally, what should the low part of the signal read?
A. 0.0 volts B. 450 millivolts C. 4.5 volts D. 2.5 volts
Which of the following conditions is likely to result in a shock hazard?
a. Using a grounded extension cord b. Using a cord from which the grounding conductor has been removed c. Connecting a power tool to a GFCI-protected circuit d. Using a grounded plug in a three-prong receptacle
A valve used at the bottom of the suction line of a pump to maintain the prime of the pump is known as a _____ valve.
a. swing b. ball c. foot d. safety
A piston compresses two kilograms of air in an insulated cylinder such that the pressure changes from 100 kPa to 1000 kPa. If the initial temperature is 25ºC, the entropy change of the air is nearest:
A) 3.6 kJ/K B) 2.2 kJ/K C) 1.7 kJ/K D) 0.008 kJ/K