Welcome to blog help for PHY 122! Here's how it works.
For each homework question and lab report we will make a post, this will probably contain a few tips on what the problems are about and how to solve them. If you are stuck on something then instead of emailing us directly you should post a comment in reply to the relevant post. We will try to guide you through tough points and help you understand the problems and the concepts behind them.
Sunday, October 10, 2010
Lab 4 pretest went live mid-afternoon Saturday, 9 Oct.
You should have received an email reminder. I hope you will find Lab 4 to be a particularly interesting one, but there is a lot to do. Please make sure you're well prepared and work diligently during the lab period.
2 comments:
Liz
said...
How do you measure the peak to peak amplitude for problem #2? I am so lost.
From the figure you know what the definition of peak-to-peak amplitude is. (It's just what the name means, and it's abbreviated P-P.) Count boxes vertically on the screen. How many boxes for P-P? The problem tells you the conversion between vertical boxes and voltage. Just apply that. Clear? It's the same for period, too. Count boxes horizontally this time. The problem tells you the conversion between horizontal boxes and time. Finally, what's the relation between frequency and period? (Hint: inverse)
2 comments:
How do you measure the peak to peak amplitude for problem #2? I am so lost.
From the figure you know what the definition of peak-to-peak amplitude is. (It's just what the name means, and it's abbreviated P-P.) Count boxes vertically on the screen. How many boxes for P-P? The problem tells you the conversion between vertical boxes and voltage. Just apply that. Clear? It's the same for period, too. Count boxes horizontally this time. The problem tells you the conversion between horizontal boxes and time. Finally, what's the relation between frequency and period? (Hint: inverse)
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