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 V0 isa)a square wave of 5 V amplitudeb)an inverted sine wave of 1 V amplitudec)a non-inverted sine wave of 2 V amplituded)a constant of either +5 or -5 VCorrect answer is option 'D'. Can you explain this answer?

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The components in the circuit shown below are ideal. If the op-amp is in positive feedback and the input voltage V_i. is a sine wave of amplitude 1 V, the output voltage V₀ is

a)
a square wave of 5 V amplitude
b)
an inverted sine wave of 1 V amplitude
c)
a non-inverted sine wave of 2 V amplitude
d)
a constant of either +5 or -5 V

Correct answer is option 'D'. Can you explain this answer?

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The components in the circuit shown below are ideal. If the op-amp is ...

Given circuit is a Schmitt trigger of non-inverting type.
V0 = ± 5 V

Let, V0 = -5 V,

V₀ can change from - 5 V to +5 V if V⁺ > 0 i.e.

=> V_i > 5 V.
Similarly V₀ can change from +5 V to -5 V if V_i < -5 V
But given input has peak value 1 V. Hence output cannot change from +5 V to -5 V or -5 V to +5 V.
∴ Output remain constant at +5 V or -5 V.
Correct answer is option (d)

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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 V0 isa)a square wave of 5 V amplitudeb)an inverted sine wave of 1 V amplitudec)a non-inverted sine wave of 2 V amplituded)a constant of either +5 or -5 VCorrect answer is option 'D'. Can you explain this answer?

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