EC4 - Margaret Rah EC4 VI-1 In this part of the experiment...

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Unformatted text preview: Margaret Rah EC4 VI-1: In this part of the experiment we used the wheatstone bridge to measure the unknown resistances by using the DC technique. V1, V2, V3 (DC Wheatstone Bridge for resistors) R 3 = 300 Ω Unknown Resistor L1 (cm) L2 (cm) σL (cm) Rx(dc) Rm (Ω) σRx(dc) A 68 32 0.05 141.18 0.11 5.27E-05 B 60.5 39.5 0.05 195.87 0.17 8.09E-05 C 46 54 0.05 352.17 0.34 2.38E-04 D 25 75 0.05 900 0.94 3.04E-03 Rm does not lie in the range determined by Rx(dc) ± σRx. The discrepancy can be caused by loose connections during the experiment. VI-2 V4 (AC Wheatstone bridge for resistors) R 3 = 300 Ω , f = 500 Hz Unknown Resistor L1 (cm) L2 (cm) σL (cm) Rx(ac) Rm (Ω) σRx(ac) A 69 31 0.05 134.78 0.11 5.01E-05 B 59 41 0.05 208.47 0.17 8.89E-05 C 45 55 0.05 366.67 0.34 2.60E-04 D 24 76 0.05 950 0.94 3.60E-03 Rx(ac) and Rx(dc) do not overlap when considering the range of values permitted by both uncertainties but the ranges are very close together, and the uncertainties are comparable because they are very close.but the ranges are very close together, and the uncertainties are comparable because they are very close....
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This note was uploaded on 06/01/2010 for the course PHY 152 taught by Professor Brewer during the Spring '08 term at SUNY Buffalo.

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EC4 - Margaret Rah EC4 VI-1 In this part of the experiment...

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