BJT Amplifiers and Oscillators MCQs
Practice free BJT Amplifiers and Oscillators multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 446 questions — no login required.
Question 91easy
The maximum overall efficiency of a transformer coupled class-A amplifier is ? per cent.
Question 92easy
A transistor audio amplifier is found to have an overall efficiency of 70 per cent.Most probably, it is a amplifier
Question 93easy
The main purpose of using transformer coupling in a class-A amplifier is to make it more
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Question 94easy
The maximum overall efficiency of a class-B push-pull amplifier cannot exceed ? per cent.
Question 95easy
The dissipation at the collector is zero in the quiescent state and increases with excitation in the case of a
Question 96easy
Class AB operation is often used in power (large signal) amplifiers in order to,
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Question 97easy
The main use of a class-C amplifier is
Question 98easy
If a class C powr amplifier has an input signal with frequency of 200 kHz and the width of collector current pulses of 0.1 ItS, then the duty cycle of the amplifier will be
Question 99easy
The primary cause of linear distortion in amplifiers is