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For designing a non-inverting amplifier with a gain of 2 at the maximum output voltage of 10 V and the current in the voltage divider is to be 10 μA the resistance required are R1and R2where R2 is used to provide negative feedback. Then(a) R1= 0.5 MΩ and R2 = 0.5 MΩ(b) R1= 0.5 kΩ and R2 = 0.5 kΩ(c) R1= 5 MΩ and R2 = 5 MΩ(d) R1= 5 kΩ and R2 = 5 kΩThis question was addressed to me in exam.Enquiry is from The Non Inverting Configuration topic in division Operational Amplifiers of Electronic Devices & Circuits

Answer»

The correct choice is (a) R1= 0.5 MΩ and R2 = 0.5 MΩ

Best EXPLANATION: 1 + R2/R1= 2 and 10/(R1+R2) = 10 μA. SOLVE for R1AND R2.



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