Output Devices MCQs Questions and Answers PDF Book Download

Output devices MCQs, output devices quiz answers to learn physics courses online. Electronics multiple choice questions (MCQs), output devices quiz questions and answers for online college degrees. Operational amplifier, inverting amplifier in electronics, output devices test prep for physics certifications.

Learn electronics test MCQs: led starts to conduct when voltage is about, with choices 1 v, 4 v, 3 v, and 2 v for online college degrees. Practice assessment test for scholarships, online learning output devices quiz questions for competitive assessment in physics major.

MCQ on Output DevicesQuiz Book Download

MCQ: LED starts to conduct when voltage is about

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


MCQ: Op-amp can provide maximum output current of

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


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

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


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

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


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. 500Ω
  2. 400Ω
  3. 300Ω
  4. 200Ω