This chapter was difficult at first, but is much easier now that I understand the VIR charts and circuit rules. Once I learned the rules for each type of circuit and learned how to solve mixed circuits, the charts came to me easily. I’m not much of a video person, but I did take the time to watch the video and I found it had a good basic explanation/review of circuits. I tend to learn better through practice problems and note-taking.
One of the most difficult topics was solving mixed circuits. This trick is to remember to combine the parallel circuits into a single resistor, then solve the circuit as a series. Here are the VIR equations:
Parallel:
V1=V2=V3=VT
IT=∑I
RT=(R1-1+R2-1+R3-1)
Series:
VT=∑V
I1=I2=I3=IT
RT=∑R
This website explains circuts pretty well for those people (like me) who learn well through reading:
http://www.physicsclassroom.com/class/circuits/u9l4e
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