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Lab Report 8

# Lab Report 8 - EXPERIMENT EC1 ELECTRIC CIRCUITS 1 V 1 We...

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EXPERIMENT EC1 ELECTRIC CIRCUITS 1 V - 1 I calculated the value of R using the formula ΔV = 0.03 V ΔI = 0.03 A = 0.03 Ω 0.92 1.37 2.13 2.56 I ± ΔI (mA) 38.00 33.50 26.50 22.00 V / I ± ΔR ( ) Ω 24.32 40.83 80.49 116.36 24.24 40.41 80.85 115.22 ΔR ( ) Ω 0.66 0.75 0.95 1.14 We first set up the circuit as shown in the diagram below. We measured the current I  and the voltage V for the 4 resistances. I tabulated the results in the table below, and calculated the resistance " R " using the  values for V and I. Next, we measure the actual value of the resistance " R m " using a digital millimeter.  The values of ΔV, ΔI and ΔR m  were provided beforehand. ΔR m Resistor 1  ( ) Ω Resistor 2  ( ) Ω Resistor 3  ( ) Ω Resistor   4 ( ) Ω V ± ΔV (V) R m  ± ΔR m  ( ) Ω

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V - 2 I plotted the data obtained in the table given below. 0.80 10.00 1.62 20.00 2.43 30.00 3.26 40.00 4.08 50.00 Using this data, I plotted a graph voltage vs. current for the different values of I The expected resistance " R " is within the expected error of the measured resistance. For the next experiment, we selected the second largest resistance and measured  the value for V using 5 different values of I. V (
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Lab Report 8 - EXPERIMENT EC1 ELECTRIC CIRCUITS 1 V 1 We...

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