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recitation05-solutions - Physics2760 Recitation I3 1.a) 2 I...

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Physics 2760 Recitation 09/30/2008 1. a) Write Kirchhoff’s laws for the circuit at right, and find the current through each resistor. b) Solve the same problem using the mesh method instead of Kirchhoff’s Laws. 1 2 3 4 12 10 16 4 V V V V ε ε ε ε = = = = 1 2 3 4 5 8 5 7 4 9 R R R R R = Ω = Ω = Ω = Ω = Ω 2. A 6 μ F capacitor is charged to 100 V and is then connected across a 500 Ω resistor. a) what is the initial charge on the capacitor? b) what is the initial current just after the capacitor is connected to the resistor? c) what is the time constant of this circuit? d) how much charge is on the capacitor after 6 ms? 3. The capacitors in the circuit shown in the figure at right are
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