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Output Devices MCQ with Answers PDF

Solve Output Devices Multiple Choice Questions (MCQ), a level physics quiz answers PDF with career test for online courses. Practice electronics Multiple Choice Questions and Answers (MCQs), Output Devices quiz questions and answers for GRE practice test. "Output Devices MCQ" PDF Book: electronic sensing system, non inverting amplifier, output devices test prep for SAT test.

"LED starts to conduct when voltage is about" Multiple Choice Questions (MCQ) on output devices with choices 1 v, 4 v, 3 v, and 2 v for GRE practice test. Learn output devices quiz questions for merit scholarship test and certificate programs for online college bachelor degree.

MCQs on Output Devices


LED starts to conduct when voltage is about

1 V
4 V
3 V
2 V


Op-amp can provide maximum output current of

25 mA
30 mA
35 mA
40 mA


A device used to avoid the relay destroying the op-amp is

reverse bias diode
forward biased diode


To limit current in LED, resistor should be connected in

evacuated flask
ionized tube


If current of 20 mA is passing through op-amp and voltage drop across series resistor is 10 V then value of resistance is

500 Ω
400 Ω
300 Ω
200 Ω
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