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Output Devices MCQs Quiz Online PDF Download eBook

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"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. Practice output devices quiz questions for merit scholarship test and certificate programs for online college bachelor degree.

MCQs on Output Devices PDF Download eBook

MCQ: LED starts to conduct when voltage is about

  1. 1 V
  2. 4 V
  3. 3 V
  4. 2 V

D

MCQ: Op-amp can provide maximum output current of

  1. 25 mA
  2. 30 mA
  3. 35 mA
  4. 40 mA

A

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

  1. diode
  2. LED
  3. reverse bias diode
  4. forward biased diode

C

MCQ: To limit current in LED, resistor should be connected in

  1. parallel
  2. series
  3. evacuated flask
  4. ionized tube

B

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

  1. 500 Ω
  2. 400 Ω
  3. 300 Ω
  4. 200 Ω

A