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An amplifier has an open loop gain of 100, an input impedance of 1kΩ & an output impedance of 100 Ω. A feedback network with a feedback factor of 0.99 is connected in a voltage series feedback mode. Choose the correct statement
  • a)
    input impedance is 10 Ω
  • b)
    Output impedance is 1 Ω
  • c)
    Input impedance is 100 kΩ
  • d)
    Output impedance is 10 kΩ
Correct answer is option 'B,C'. Can you explain this answer?
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An amplifier has an open loop gain of 100, an input impedance of 1k&Om...
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An amplifier has an open loop gain of 100, an input impedance of 1k&Om...
Ω, and an output impedance of 100 Ω. The input signal voltage is 10 mV.

To find the output voltage, we can use the formula for the voltage gain of an amplifier:

Gain = Output voltage / Input voltage

Since the amplifier has an open loop gain of 100, the voltage gain is 100. Therefore, we can write:

100 = Output voltage / 10 mV

Rearranging the equation, we find:

Output voltage = 100 * 10 mV = 1 V

So, the output voltage of the amplifier is 1 V.
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An amplifier has an open loop gain of 100, an input impedance of 1kΩ& an output impedance of 100Ω. A feedback network with a feedback factor of 0.99 is connected in a voltage series feedback mode. Choose the correct statementa)input impedance is 10Ωb)Output impedance is 1Ωc)Input impedance is 100 kΩd)Output impedance is 10 kΩCorrect answer is option 'B,C'. Can you explain this answer?
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An amplifier has an open loop gain of 100, an input impedance of 1kΩ& an output impedance of 100Ω. A feedback network with a feedback factor of 0.99 is connected in a voltage series feedback mode. Choose the correct statementa)input impedance is 10Ωb)Output impedance is 1Ωc)Input impedance is 100 kΩd)Output impedance is 10 kΩCorrect answer is option 'B,C'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about An amplifier has an open loop gain of 100, an input impedance of 1kΩ& an output impedance of 100Ω. A feedback network with a feedback factor of 0.99 is connected in a voltage series feedback mode. Choose the correct statementa)input impedance is 10Ωb)Output impedance is 1Ωc)Input impedance is 100 kΩd)Output impedance is 10 kΩCorrect answer is option 'B,C'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An amplifier has an open loop gain of 100, an input impedance of 1kΩ& an output impedance of 100Ω. A feedback network with a feedback factor of 0.99 is connected in a voltage series feedback mode. Choose the correct statementa)input impedance is 10Ωb)Output impedance is 1Ωc)Input impedance is 100 kΩd)Output impedance is 10 kΩCorrect answer is option 'B,C'. Can you explain this answer?.
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