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Electronic Devices MCQs – Practice Test 9 (Chapter 6)

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Free "Oscillators MCQs" App Download with MCQ: In positive feedback oscillators, output of an amplifier is feed back to the input with; with answers: 120° phase shift, 90° phase shift, 180° phase shift, and no phase shift. Solve Temperature Coefficient Quiz Questions, download Google e-Book (Free Chapter) for electronics device physics learning.

Oscillators MCQs – Practice Test 9 PDF Download

MCQ 41: In positive feedback oscillators, output of an amplifier is feed back to the input with:

  1. 90° phase shift
  2. 120° phase shift
  3. 180° phase shift
  4. no phase shift

MCQ 42: In oscillators, input DC power supply is converted into:

  1. mechanical energy
  2. electrical energy
  3. thermal energy
  4. optical energy

MCQ 43: Product of an amplifier gan and attenuation of feedback circuit is equals to:

  1. current gain
  2. voltage gain
  3. resistance
  4. capacitance

MCQ 44: 555 timer is introduced in:

  1. 1872
  2. 1890
  3. 1932
  4. 1972

MCQ 45: Oscillator has input of:

  1. DC supply voltage
  2. AC supply voltage
  3. user data
  4. clock signal

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