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Femme_physics
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Homework Statement
Given here is an Operational Amplifier, its feeding Voltages are +-10.
A) Calculate Vin to get a Vout of -2V, point out the direction of the current in this case (From a to b or b to a)
http://img72.imageshack.us/img72/2550/needheed.jpg
The Attempt at a Solution
http://img844.imageshack.us/img844/4493/blury.jpg
Is this the right formula?The Vx's are at point a and c, that I know.
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