Experimental circuit, consisting of a variable voltage source and 100 Ohm load resistor.
Experimental setup, multi-meter connected in parallel to measure voltage.
Multimeter connected in series to measure current
Collected data, organized in a table of corresponding voltages and currents
(also an exercise on the relationship between circuit branches, loops, and nodes)
Plot of data, with linear fit.
Summary
With the definition of Ohm's Law, V=IR, rearranged into the form R=V/I, resistance can be found as the slope of a V vs I plot, as our data has been fit. The slope found from our experimental data was 0.1 V/mA, corresponding to a resistance of 100 Ohms, exactly as expected. Also of note is that all data points fall on the fit line, showing little deviation from the expected linear behavior. We can conclude that Ohm's Law has been experimentally verified as accurate.
No comments:
Post a Comment