SSC JE Electrical Engineering 2017 Set 1 Paper

High gain comparator circuit is grounded and a sinusoidal voltage is applied from other input. Out put will square leave because in high gain comparator out put voltage become ${\mathit{v}}_{\mathrm{sat}}$ i.e. saturation and output voltage vary between + ${\mathit{v}}_{\mathrm{sat}}$ to – ${\mathit{v}}_{\mathrm{sat}}$.