Warming up on ac circuits

This assignment is due before 9 AM, Monday, November 13th, 2000.

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The following three questions refer to the material you were to read in preparation to the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

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WarmUp questions are worth 5 points each towards your "Homework and Web Assignments" score (250 points total).




1.

In your own words, please explain what an impedance is. Also, please explain the difference between the L-R-C circuit discussed in section 32-4 and the L-R-C circuit discussed in section 31-7.





2.

You make a parallel plate capacitor by using two sheets of aluminum foil for plates, and a sheet of notebook paper to hold them apart. Estimate the impedance of your capacitor at 60 Hz.





3.


For an ac voltage signal V(t) = V0cos(t), which is the largest?

The RMS voltage.

The average voltage

The voltage amplitude

V0/1.414

all of the above choices are equal.

Below is a space for your thoughts, including general comments about today's assignment. What was hard or confusing (or cool)? What would you like to spend extra time on in class? Do you see how this subject fits in with the others we have discussed?




You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.

I received no help from anyone on this assignment.



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