discussion01 - BIEN 130 Bioinstrumentation D01 April 1 2009...

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Unformatted text preview: BIEN 130: Bioinstrumentation D01 April 1, 2009 Hyle Park Questions? Digital scale Digital scale Digital scale • 185.23905 ± 0.00567 • Real weight = 186.00 • Accuracy? Precision? Capacitors • If the plates are squeezed together, does the capacitance increase or decrease? A C d ε = ε A d Q + Q- Q CV = Capacitors • Series • Parallel 1 2 total n C C C C = + + + L 1 2 1 1 1 1 total n C C C C = + + + L 1 C 2 C n C 1 C 2 C n C RC circuits in V R C RC circuits in V R C ( 29 Q t = = ( 29 ( 29 C Q t Q CV V t C = ⇒ = ( 29 ( 29 ( 29 R dQ t V IR V t I t R R dt = ⇒ = = ( 29 ( 29 ( 29 ( 29 1 in C R in C R V V V V V t V t dQ t Q t R C dt =-- = + = + RC circuits in V R C ( 29 Q t = = ( 29 ( 29 1 in dQ t V Q t R C dt = + ( 29 t Q t e β α γ = + ( 29 t dQ t e dt β αβ = ( 29 ( 29 1 t t in t t t V e R e C e R e C C R e C C β β β β β α γ αβ α γ αβ α γ αβ = + + = + + = + + RC circuits in V R C ( 29 Q t = = ( 29 1 t in RC e V C C β α γ β...
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discussion01 - BIEN 130 Bioinstrumentation D01 April 1 2009...

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