The diagram shows an operational circuit. Which of the following correctely states the nature and magnitude of the amplification ? A. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Inverting"," 0.2"):}`B. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Inverting"," 5.0"):}`C. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Non-inverting"," 0.2"):}`D. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Non-inverting"," 5.0"):}`

The diagram shows an operational circuit. Which of the following corre

1.	The diagram shows an operational circuit. Which of the following correctely states the nature and magnitude of the amplification ? A. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Inverting"," 0.2"):}`B. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Inverting"," 5.0"):}`C. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Non-inverting"," 0.2"):}`D. `{:("Nature","Magnitude of"(V_(0))/(V_(i))),("Non-inverting"," 5.0"):}`
Answer» Correct Answer - B The inverting input of the operational amplifier is virtual ground, thus `(V_(1))/(R_(1))+(V_(0))/(R_(2)) =0 implies (V_(0))/(V_(i))=-(R_(2))/(R_(1)) =-(10 K)/(2K)=-5` It is thus an inverting amplifier with gain of `-5`.

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