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lab 4 (1)

lab 4 (1) - Physics 134 Experiment 4 Alternating Current(AC...

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Physics 134 Experiment 4: Alternating Current (AC) Circuits Abstract: In this lab, we learned about voltages that change with time using the Function Generator and the Oscilloscope. In the first part of the experiment, we calculated the frequency of a sine wave using the period. We then used a loud speaker to determine the range of audible frequencies to us, and spoke into the speaker to see what type of pattern this would produce. Finally, we used a resistor and capacitor to calculate the RC time constant. We observed what happened to the two waves produced when a constant voltage was applied to charge a capacitor through a resistor, and used the equations given to calculate time. Questions: 1. Wave shown on the oscilloscope (measurement of time period) Time, which is found by measuring from one peak to the next, is 1.0ms. To find frequency, we can use the equation f=1/T. This gives a frequency of 1*10^3 Hz, which is the same as the value to which we set our function generator.

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2. 1) The range of frequencies that we could hear was between 65Hz and 17000Hz. People’s
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lab 4 (1) - Physics 134 Experiment 4 Alternating Current(AC...

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