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A square root circuit build from multiplier is given an input voltage of 11.5v. Find its corresponding output voltage?

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+1 vote
in Linear Integrated Circuits by (37.1k points)
A square root circuit build from multiplier is given an input voltage of 11.5v. Find its corresponding output voltage?

(a) 11v

(b) 15v

(c) 13v

(d) Cannot be determined

I have been asked this question during an interview for a job.

Question is taken from Multiplier and Divider in section Operational Amplifier Applications of Linear Integrated Circuits

1 Answer

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by (39.8k points)
The correct option is (d) Cannot be determined

Discover the easiest explanation: The input voltage must be negative or else the op-amp will saturate and lie between the ranges of -1 to -10v.

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