Post Lab Questions 1 In Part 1 Comparing The Two Data Sets What Can You Conclude About The Effect Of The Steel Core O 1 (72.57 KiB) Viewed 34 times
POST LAB QUESTIONS 1) In part 1, comparing the two data sets, what can you conclude about the effect of the steel core on the resonant angular frequency, wo? 2) In part 1, was the resistance from the fit coefficient A different than the 10 Q? If yes, what do you think caused the discrepancy? 3) In part 2, were v,(t) & vc(t) graphs exactly in opposite phases as expected with f = 1000 Hz? If not, what do you think caused the extra shift in phase? Comment on the amplitudes of the two voltages before and after entering the resonant frequency.
DATA & ANALYSIS Part 1 - - Resonance Resistance of the inductor,r... 02.(0) Resistance of the load, R ..........(0) TABLE A f(Hz) VR.ms () f (Hz) Verms (V) 20 200 0.469 2.143 40 220 2.109 2.of 60 240 80 260 2.ool 1.935 100 280 120 0.972 1.224 1.522 1.762 1.94 2.05g 2.17 2.15) 300 1.867 1.860 140 320 160 180 R+ r =.....0-82... Fit coefficient A:lo-28100554A = (R+ry2 V.? اولة : vo Fit coefficient B.?.0861 0.0 58€ B = 11435 5.462 Fit coefficient D:.. D = W, = vc fo = P = ZIVLC 12 D 27 1 2 fo.experimental from fit coefficient D: 1734.65 € fo.theoretical =...114.3.... -3.A.) % difference =......
TABLE B Vrime (M) 20 40 60 80 100 0.495 0.994 2.510 1.08 1.156 1.52 1.350 1186 1.05 120 140 160 180 . . Fit coefficient A 216913.476 Fit coefficient B: 4.6.2.3.4.408 Fit coefficient D: 6809 1.63.63 . a using coefficient D: estimated u of steel core:. -1 Pexp At2 T . .... Part 2-Phases Ptheory = tan-1 -*-*)er cos- A = 7.220X10 Teoool Pexperimental = 0.4.5.24 theoretical % difference =
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