# Find the input and output voltage in voltage follower circuit?

+1 vote
Find the input and output voltage in voltage follower circuit?

(a) Vin=2v and Vout = 3v

(b) Vin=10v and Vout = 11v

(c) Vin=9v and Vout = 9v

(d) Vin=4v and Vout = 7v

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I need to ask this question from Voltage Series Feedback Amplifier topic in chapter Operational Amplifier Characteristics of Linear Integrated Circuits

## 1 Answer

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The accurate option is (c) Vin=9v and Vout = 9v

Check out the details: Voltage follower has input voltage equal to output voltage. The closed loop voltage gain is equal to one. For example, take the input and output voltage to be 2v, then AF = Vout/Vin = 2v/2v = 1.

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