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In a common collector amplifier the voltage gain is
  • a)
    constant
  • b)
    less than I
  • c)
    varies with input voltage.
  • d)
    varies with load impedance
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In a common collector amplifier the voltage gain isa)constantb)less th...
The output voltage on a common-collector amplifier will be in phase with the input voltage, making the common-collector a non-inverting amplifier circuit. The current gain of a common-collector amplifier is equal to β plus 1. The voltage gain is approximately equal to 1 (in practice, just a little bit less).
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Most Upvoted Answer
In a common collector amplifier the voltage gain isa)constantb)less th...
Vout = (Vin*RE)/re+RE
voltage gain An = Vout/Vin = (Ie*RE)/Ie(re+RE)
Since RE>>re .therefore (re+RE)=RE
finally Av=Vout/Vin
Av= Ie *RE/Ie *RE
Av = 1
thus the voltage gain of the common collector is equivalent to 1
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In a common collector amplifier the voltage gain isa)constantb)less than Ic)varies with input voltage.d)varies with load impedanceCorrect answer is option 'B'. Can you explain this answer?
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