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Friday Quiz: EE 101, Part 3

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David Ashton
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Question 2
David Ashton   3/27/2015 1:38:50 AM
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Gotta take issue with your question 2 Martin.  Sure, a voltage divider between the output and inverting input produces negative feedback.  A voltage divider from the output to the non-inverting input produces positive feedback and will give you a schmitt-trigger effect.  You can also have negative feedback without a voltage divider, as in a voltage follower or buffer with the output directly connected to the inverting input.  The question needs to be more specific.

So the only fully correct answer was (e) None of the above.  I'd also point out that (f) All of the above would encompass (e) none of the above and pose a bit of a contradiction.....

Ian Johns
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Gremlins
Ian Johns   3/27/2015 1:14:08 AM
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The Gremlins have attacked question 3. Everything is grounded, creating an "always off" gate.

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