capacitor and dielectirc constant.doc

capacitor and dielectirc constant.doc - Sarah Karam Rouba...

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Unformatted text preview: Sarah Karam Rouba Dagher Physics 211L Capacitance and Dielectric Constant Measurement (A) Unknown capacitors and combination Nominal Values: C x :_ 0.47 10 a nF _ _ C y :__ 2.22 10 a nF _ C z :__ 56 10 . nF _ Note the manufacturers rated tolerances Measured Value, C m (nF) Calculated (From measured values) (nF) C x 0.451------ C y 2.537------ C z 56---- ---- C x C y C z 0.386 n n eq C C 1 1 = C x C y 0.383 n n eq C C 1 1 = C y C z 2.268 C x C z 0.452 C x //C y //C z 58.82 = n n eq C C = Cx+Cy+ Cz=58.808 C x //C y 2.81 Cx+Cy=2.808 C x //C z 56.46 Cx+Cz=56.451 C y //C z 58.06 58.357 1 Measured Value, C m (nF) Calculated (From measured values) (nF) C x (C y //C z ) 0.45 (C x C y )//C z 56.4 =56.379 C x //( C y C z ) 2.72 You must use the measured value for C x , C y and C z in your calculations ( indicates a series connection while // indicates a parallel connection). Comment on your results; agreements must be noted and discrepancies explained. Parallel: Measured value: Ceq =Cx//Cy//Cz = 58.8210-9 F Calculated value: Ceq=Cx//Cy//Cz=58.808 10-9 F Series: Measured value: Ceq=CxCyCz=0.386 10Ceq=CxCyCz=0....
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This note was uploaded on 02/07/2011 for the course PHYS 211L taught by Professor Saranajm during the Fall '07 term at American University of Beirut.

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capacitor and dielectirc constant.doc - Sarah Karam Rouba...

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