EC > GATE 2020 > Op-Amp Circuits
The components in the circuit shown below are ideal. If the op-amp is in positive feedback and the input voltage Vi is a sine wave of amplitude 1 V, the output voltage Vo is
A
a non-inverted sine wave of 2 V amplitude.
B
an inverted sine wave of 1 V amplitude.
C
a square wave of 5 V amplitude.
D
a constant of either +5 V or -5 V.

Correct : d

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