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If an inverting amplifying circuit has a gain of 10 and ±15V power supplies are used. The values of input for which opamp would be in the linear region?(a) ±1.25(b) ±1.5V(c) ±2.25(d) ±0.5I had been asked this question in quiz.The above asked question is from The Inverting and Non-Inverting Amplifier Circuit topic in division The Operational Amplifier of Electric Circuits

Answer» RIGHT option is (b) ±1.5V

Best EXPLANATION: Gain= Rf/Rs= 10 and vo= (-Rf/Rs)*VS.

→ vo= -10vs and GIVEN -12V≤ vo ≤ 12V.

→ -15= -10vs. So, vs= 1.5V

→ 15=-10vs. So, vs=-1.5V.


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