In this assignment, we were asked to measure the relationship between the potential difference across a 1 μF capacitor and the current passing through it. In order to achieve this, we constructed a series RC circuit and applied our knowledge in order to make predictions on the voltage-current relations.
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| Predictions of current and voltage behavior in RC circuit |
We felt pretty confident about our assumptions.
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| Schematic of our circuit along with the actual construction |
Scope collected data from our simple circuit. We set our v
C, v
R, and i
C as channel 1(yellow), channel 2(blue), and a custom math channel(red).
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| Oscillations with f = 1kHz. |
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| Oscillations with f = 2kHz |
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| Oscillations with a triangle wave at f = 100Hz |
Overall, we were able to accurately predict the behavior of the current and voltage across the capacitor with the voltage-current relations of this circuit element. Yay!
One way our measured values can depict our predictions more accurately is by adjusting the frequency. We couldn't really tell the difference when we were using the sinusoidal function on the scope, but when we changed the output function to a triangle wave, we did not obtain a perfect square wave.
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