Output Devices MCQs Quiz Online Tests pdf Download

Practice output devices MCQs, physics MCQ for online test prep. Electronics quiz has multiple choice questions (MCQ), output devices quiz questions and answers as led starts to conduct when voltage is about, answer key with choices as 1 v, 4 v, 3 v and 2 v for competitive exam prep. Free study guide is to learn output devices quiz online with MCQs to practice test questions with answers.

MCQs on Output Devices Quiz pdf 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