Electronic Devices and Circuit Theory-Oscillator Circuits Questions and Answers
Electronic Devices and Circuit Theory – Oscillator Circuits Questions with Answers cover one of the most fundamental areas in electronics. Oscillator circuits are used to generate periodic waveforms without any input signal. Understanding how these circuits work is essential for exams like GATE, ISRO, DRDO, and ECIL. This topic focuses on the design, analysis, and operation of oscillators including RC, LC, and crystal oscillators. Practicing these electronics MCQs and programming questions with answers helps learners strengthen their conceptual knowledge and prepare effectively for technical interviews and competitive exams.
Electronic Devices and Circuit Theory-Oscillator Circuits
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40 questions
31. The frequency distortion arising because of varying amplifier gain with frequency is considerably reduced in a negative-voltage feedback amplifier circuit.
- True
- False
32. The feedback network in a Colpitts oscillator contains two series capacitors and a parallel inductor.
- TRUE
- FALSE
33. The positive feedback voltage in an oscillator has no net phase shift.
- TRUE
- FALSE
36. LC feedback elements are normally used in oscillators for frequencies greater than 1 MHz.
- TRUE
- FALSE
39. The feedback signal in a Hartley oscillator is derived from an inductive voltage in the tank circuit.
- TRUE
- FALSE
40. In the astable mode, a 555 timer is connected as a free-running relaxation oscillator.
- TRUE
- FALSE