Today we analyzed circuits, learning primarily about equivalent resistance, which is always measured from the source. The equation is R=V/I. There are two primary types of circuits, series and parallel. Series circuits have only one path for the current to travel, with many drops of potential along the way. Here is picture of a series circuit:
The current in a series circuit is the same throughout, and the sum of the potential drops is equal to the source potential. In this type of circuit, resistance is measured as the sum of the resistance of its components. On the other hand, parallel circuits have only one potential drop because there are multiple paths for the current to flow. In this case, total current is measured by the sum of the branch currents, which is equal to the current supplied by the source. Here is a picture of a parallel circuit:
As in a series circuit, resistance in a parallel circuit is measured as the sum of the resistance of its branch resistors, however the reciprocal must be taken in this case. That just about wraps up today’s lesson, peace.
2 comments:
I was able to see the difference between the series circuit and paraell circuts when paul posted some pictures.I think i understand pretty much what we have been going over in class about the different forumula like ohms law and that stuff. I understand how to label the diagrams and where the symbols go when we draw a circuit and such. Just a little bit of review before the test monday will probably prepare me to take the quiz on DC circuits. Plus i think the review sets really with the tests and quizzes. It shows us what we know or need ot know for the test and it prepares me for it. so i like the problem sets
Wow these pictures really helped to understand the difference because I have my science exam ths week. Thankyou :)
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