An IC optocoupler designed to allow an external object to block the light path between the photoemitter and the photodetector is known as a
A) optical diode B) optointerrupter C) optomiser D) optointerpreter
B
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The recreational programs in the national wildlife refuges have ____ in recent years
A) decreased significantly B) greatly increased C) ?not changed D) increased and decreased intermittently
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What are some of the advantages of welding?
What will be an ideal response?
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Ohm's law relates three quantities: the voltage of a resistor, the current through the resistor, and the ___________ of the resistor
A. polarities B. potentials C. resistance D. circuits
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What is the frequency of a clock waveform whose period is 100 microseconds?
A) 1 kHz B) 40 kHz C) 10 kHz D) 50 kHz
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