Recent content by Rusag

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    How does the OpAmp bypass Vf limitations in precision rectifiers?

    My wording of the question could be confusing as I am trying to learn rather than stating something I know. But I came across this concept multiple times - that the voltage required to turn on the diode is supplied by the OpAmp rather than by the small signal. That is the reason why the...
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    Help Understanding Current Gain Of A BJT NPN Transistor

    Right off the bat, V_b is fixed by a voltage divider consisting of R_1 and R_2. In other words, V_b is the voltage drop across R_2 only. If you combine them in parallel then what you obtain is Thevenin equivalent resistance that you would place along with Thevenin voltage which is, in turn...
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    How does the OpAmp bypass Vf limitations in precision rectifiers?

    Hi all, I am currently studying OpAmps and one of the topics that came up was the applications of OpAmp circuits. In particular, I was learning about precision rectifiers (using non-inverting version of it, thus the diode is pointing away from the "out" terminal of the OpAmp). The thing I...
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    Understanding the Concept of Work: Displacement of Force or Center of Mass?

    Thank you all for the replies! It's starting to make sense now. The question that made me think about this involved a rod attached at one end and a force acting at the other end. In other words, both the center of mass and the endpoint of the rod trace a circular path, however due to the radii...
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    Understanding the Concept of Work: Displacement of Force or Center of Mass?

    I am having trouble understanding the concept of work on an intuitive level. The equation is rather simple but the definition of displacement is vague (everywhere I looked it's just stated as displacement of the body in the direction of motion). The question is, is this the displacement of the...
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