PHY
lab EC1

# lab EC1 - VI-1 VR(Volts I(mA RDMM(Ohms Resistor A 4.458 30...

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VI-1 Resistor A: R R = 148.6 4.953 Resistor B: R R = 225 11 Resistor C: R R = 385 29.6 Resistor D: R R = 1081 98.27 The directly measured value of R (as determined by the DMM) does indeed agree with the resistance as determined by my measurements of V and I for each resistor. VI-2 # V (Volts) I (mA) 1 .760 5 2 1.506 10 3 2.232 15 4 2.997 20 5 3.734 25 0 0.5 1 1.5 2 2.5 3 3.5 4 f(x) = 0.15x + 0.01 R² = 1 V vs I Current (mA) V (Volts) Resistor A Resistor B Resistor C Resistor D V R (Volts) 4.458 4.727 5.015 11.892 I (mA) 30 21 13 11 R DMM (Ohms) 148.34 214.9 383.3 983.4

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According to Linest, S= 0.1488 and Uncertainty in S=.00059 S s = 0.149 .001 R R = .15 .03 According to the graph, this conductor is an ohmic resistor because the graph is a straight line and therefore it obeys Ohm’s Law.
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Unformatted text preview: VI-3 # V (Volts) I (mA) 1 0.20 2 0.40 3 0.60 1.5 4 0.65 5 5 0.70 14 6 0.71 18 7 0.72 23 8 0.73 29 9 0.74 36 10 0.75 47 5 10 15 20 25 30 35 40 45 50 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 V vs I I (mA) V (Volts) R .60 = 400 R .65 = 130 R .70 = 50 Yes, this diode is an ohmic conductor, comparing my graph to the graph on 43, the graphs are both similar in shape. It obeys Ohms Law. VI-4 R R = 1794 358.72 DMM Result: 1704 R S =1839 R=1793.6 The three values of R are all between 135 Ohms of each other. VI-5 R R = 66.00 13.20 R=66.00 R P = 68.04 DMM Result: 66.70 The Results for Resistance are all within 2.04 Ohms of each other....
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• Spring '14
• Whitmire,SE
• Physics, Ohms law, Resistor, ohm, Electrical resistance

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