Chapter 4 Feedback Amplifiers MCQs

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1. . If the feedback signal is in-phase with the input signal, it is called





2. . In oscillator circuit ________ feedback is used





3. . In negative feedback the amplifier gain is





4. . In amplifier the feedback is provided to the





5. . The negative feedback is also called ________ feedback





6. . Which feedback is used to stabilize the gain of amplifier





7. . In an amplifier the difference of 3dB frequencies are





8. . In an amplifier feedback helps out





9. . Positive feedback is also called ________ feedback





10. . In voltage series feedback the input impedance is





11. . The output impedance of emitter follower is





12. . The value of negative feedback fraction is always





13. . A feedback circuit usually employs ________ network





14. . Negative feedback is used in





15. . Emitter follower circuit is used for





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