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  1. R

    Transistors

    Over the years, I have locked horns with a lot of folks over whether a BJT is current-controlled (CC) or voltage-controlled (VC). I believe I can argumentatively pound anyone into the ground who thinks that a BJT is a current-controlled device. Here are some of the points folks make when...
  2. R

    Calculus I homework question about rate of change of resistance in an RC circuit

    dietermoreno, That looks like a straight forward problem. OK, the total resistance Rt is the product of R1 and R2 divided by the sum of R1 and R2. So find the derivative of Rt with respect to time in terms of R1 and R2. It's easy, you can do it. Then just plug and chug in the numbers to...
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