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Jeremy c. zodinliana Asked a Question
November 22, 2021 10:45 ampts 30 pts
  • IIT JAM
  • Physics (PH)

13. explain why the voltage gain of an rc coupled ampifier declines beyond 20 khz ac. signal frequency. 14. what is positive feedback of an amplifier? obtain th

13. Explain why the voltage gain of an RC coupled ampifier declines beyond 20 KHz ac. signal frequency. 14. What is positive feedback of an amplifier? obtain the relation between open loop and closed loop gain under positive feedback. 15 unant ovauataismael aill,
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  • Anshum Sharma Best Answer
    13.) At High frequencies (i.e. above 20 KHz) Again considering the same point, we know that the capacitive reactance is low at high frequencies. So, a capacitor behaves as a short...
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