fluctuation


126 (Monday, March 25th) This video demonstrates the difficulty some groups had in collecting data from the squishy circuits lab. The conductive dough they made never gave consistent readings. When we got frustrated with trying to measure ΔV and I for their dough, we tried measuring R directly using the digital multimeters. The video shows the readings for a given chunk of dough measured in MΩ, fluctuating between 1.02 MΩ in the first frame and 0.55 MΩ in the last frame. There will be a lot of experimental uncertainty to write about in the lab report!

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