I guess I learned my lesson in school when I challenged teach and won on a number of occasions and won. I would get answers like, your not supposed to know that yet or you have to answer the questions within the context of the course.
I've been hanging out in a very specialized group mainly as a spectator, but learning lot of stuff.
One thing that was talked about was a device that was home built that had three 1K resistors in series. Everyone was warned that you CANNOT replace the three resistors with a single 3K resistor, nor change from a leaded to an SMD part.
It turns out that in this particular application, the parasitic inductances and capacitances form a filter.
So, remember when you learned that resistances in series add? True in most cases, but not this one.
I've learned that you have to place yourself in whatever world your working in and learn the terminology for that world. What you learn is generally contingent on your ability to grasp the concepts or prior knowledge.
Be warned.
I've been hanging out in a very specialized group mainly as a spectator, but learning lot of stuff.
One thing that was talked about was a device that was home built that had three 1K resistors in series. Everyone was warned that you CANNOT replace the three resistors with a single 3K resistor, nor change from a leaded to an SMD part.
It turns out that in this particular application, the parasitic inductances and capacitances form a filter.
So, remember when you learned that resistances in series add? True in most cases, but not this one.
I've learned that you have to place yourself in whatever world your working in and learn the terminology for that world. What you learn is generally contingent on your ability to grasp the concepts or prior knowledge.
Be warned.