Today we started out the day by going over our homework from last night. (it was that packet with all the different circuits) A few things to remember is to watch out for when it is K-ohms. It is a good review, definately worth doing if you haven't already. We then started with notes. It was pretty much a review of yesterdays lesson. See Pauls post if you missed Monday! We worked on a practice worksheet as well. It was helpful because it helped to reinforce and actually see these rules applied. A few things to note when drawing circuits. Be careful as to where you place the Ammeter. Be sure to place it where you get the full currect and not between where the current may be split. You can use your reference table to help you with the signs that need to be used. Also another thing from the Practice Worksheet always look at the different options you have to equations.
We also learned about meters in circuits.
A voltmeter: It is connected in a parallel circuit and it is intended to measure potential difference between two positions in a circuit. It has an extremely high internal resistance which means it won't let much current through.
A Ammeter: It measures current through a single point in a circuit. It has an extremely low internal resistance which creates an extremely small voltage drop.
There was no homework assigned today. There is a test Monday, I suggest doing the review packets.
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1 comment:
i am understanding the circuit unit much better now since we've been doing more problems in class with instruction and going over them
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