LAB REPORT FOR MP11 EXPERIMENT

# LAB REPORT FOR MP11 EXPERIMENT - steps of 40Hz f(Hz V R(mV...

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LAB REPORT FOR MP11 EXPERIMENT: RLC Circuits and Resonance VI(1) R-C ℓ measured = 1.1x0.2mS L measured = 4.9x0.2mS Phase Difference is calculated by equation: Thus, ф = 80.8˚ R-L ℓ measured = 1.1x0.2mS L measured = 4.9x0.2mS Phase Difference is calculated by equation: Thus, ф = 80.8˚ Here the phase differences between R and C & R and L are expected. Both have same phase difference. VI(2) R-L-C V(3) Frequency Range covered 300Hz above and below resonant frequency in steps of 40Hz.

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f(Hz) V R (mV) 1000 100 1040 115 1080 133 1120 155 1160 195 1200 240 1240 344 1280 461 1320 815 1360 860 1400 594 1440 390 1480 275 1520 210 1560 180 1600 151 1640 127 1680 113 1720 97 Resonant frequency from the table and graph below is 1360Hz at which voltage is maximum of 860mV. V(3’)
Here a ferromagnetic core is inserted inside the inductor. Frequency Range covered 250Hz above and below resonant frequency in

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Unformatted text preview: steps of 40Hz. f(Hz) V R (mV) 7460 318 7500 338 7540 343 7580 390 7620 410 7660 433 7700 444 7740 445 7780 432 7820 412 7860 392 7900 367 7940 323 7980 314 Resonant frequency from the table and graph below is 7740Hz at which voltage is maximum of 445mV. VI(3) R L =1.317KΩ Quality factor for V(3) ∆ f for V(3) = 160Hz f R for V(3) = 1360 Thus, Q from graph = f R /∆ f Thus Q=8.5 Now Q from Equation: Q= 2π f R L/R+ R L Therefore Q = 5.6 Quality factor for V(3’) ∆ f for V(3) = 610Hz f R for V(3) = 7740Hz Thus, Q from graph = f R /∆ f Thus Q=12.68 Now Q from Equation: Q= 2π f R L/R+ R L Therefore Q =32.05 New Question μ pearmeability = L’ / L where L’ is for inductor with iron core and L is for inductor without iron core. Now L is given by: Thus, L’ = 0.105 & L = 247.366 Thus, μ = 4.24e-4 Hm-1...
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## This note was uploaded on 10/20/2011 for the course EE 257 taught by Professor staff during the Spring '11 term at SUNY Buffalo.

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LAB REPORT FOR MP11 EXPERIMENT - steps of 40Hz f(Hz V R(mV...

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