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Regression Analysis of Electric Output from Increasing Battery Cells

CSEF · 2016 Electronics & Electromagnetics

Aidan J. Morris · Norton Space & Aeronautics Academy, San Bernardino, San Bernardino County

Overview

Objectives/Goals The objective of this experiment was to determine that if I increase the amount of cells in a battery, would the electricity produced increase in a linear relationship. Methods/Materials The materials I used for this experiment were 5 pieces of copper/pennies, 5 pieces of zinc/washers, 5 pieces of felt, white vinegar, and a multimeter. I tried to use a galvanometer, but it did not work. To perform this experiment, I used the materials to create battery cells and then measured the electricity produced on the multimeter. Then graphed the results. Results When I graphed the data points, I observed that none of the test results formed a straight line on the graph. Then, I performed a regression analysis and found the data points had a more linear than exponential relationship. Conclusions/Discussion I can conclude from my tests, graph and regression analysis that when I increase the amount of cells in a battery, the electricity produced by the battery will increase in relatively linear proportion.

Summary statement

I determined that when the amount of cells in a battery increases, the electricity produced increases in a linear relationship.

Help received

I conducted the experiment myself. I received my understanding of regression analysis in discussions with my father.

Competition history

  • CSEF 2016 Electronics & Electromagnetics · Entry J0919

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