PHYSICS 213 - Lab 8.docx

PHYSICS 213 - Lab 8.docx - PHYSICS 213-L LABORATORY REPORT...

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PHYSICS 213-L LABORATORY REPORT Resistance Measurement Laboratory No. 8 Written By: Makiah Stukel Lab Section 01 Lab Partner: Brooklyn VanDerWolde Date Performed: 9/19/17 Instructor: William Matson

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ABSTRACT The objective of this experiment was to use voltmeter and ammeters and observe their limitations when measuring resistance. Different circuits were used to display readings from both the voltmeter and the ammeter. All data can be found in corresponding data tables, along with percent error which ended up being 17.53% and 43.45% from the corrected resistance value of the high and low resistor, respectively. DATA ANALYSIS Table I: High resistance data Voltmeter (EMD) Reading (V) Ammeter (DMM) Reading (mA) R nominal (Ω) R corrected (Ω) Figure 1 3 2.97 1010.1 1010.12 Figure 2 3 1.96 1530.61 1530.51 Average 1270.36 1270.815 Table II: Low resistance data Voltmeter (EMD) Reading (V) Ammeter (DMM) Reading (mA) R nominal (Ω) R corrected (Ω) Figure 1 0.32 506 0.632 0.6332 Figure 2 0.40 500 0.8 0.8013 Average 0.716 0.717 Table III: Resistance of each meter Table IV: Percent errors from actual values Actual Value of Resistance (Ω) % Error of average nominal value from actual (%) % Error of corrected value from actual (%) High Resistor 1541 17.56 17.53 Low Resistor 0.5 43.2 43.45 Device Resistance (Ω) EMD Voltmeter 3010 EMD Ammeter 0.1 DMM Voltmeter 998000 DMM ammeter 10.3 High resistance element 1541 Low resistance element 0.5
For the first part of the experiment, a circuit was connected using the high resistance element. An
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