In the circuit to the right, E = 1.2kV, C = 6.5 μF, and R₁ = R₂ = R3 = R = 0.73 M. With C completely uncharged, switch S is sud- denly closed at t = 0. Remember to draw equivalent circuits to help with the analysis! R₁ www R₂₂ R₂ (a) At t = 0, what is the voltage across the capacitor? How are the voltages across R3 and R₂ related? (b) At t = 0, what are the currents in each resistor? (c) For t→∞o, what are the currents in each resistor? (d) For t→→∞o, what are the voltages across each resistor? (e) For t→→ ∞o, what is the voltage across the capacitor? (f) Once the circuit has nearly reached equilibrium, the switch is reopened. What is the current in each resistor right after the switch is reopened? The equivalent circuit will be super useful here; note that when we change the circuit by opening the switch, the capacitor is no longer in steady state - do not assume its current is zero! (g) How long after the switch is reopened does it take for the current in R3 to drop to half of the value it had immediately after the switch was reopened?

In the circuit to the right, E = 1.2kV, C = 6.5 μF, and R₁ = R₂ = R3 = R = 0.73 M. With C completely uncharged, switch S is sud- denly closed at t = 0. Remember to draw equivalent circuits to help with the analysis! R₁ www R₂₂ R₂ (a) At t = 0, what is the voltage across the capacitor? How are the voltages across R3 and R₂ related? (b) At t = 0, what are the currents in each resistor? (c) For t→∞o, what are the currents in each resistor? (d) For t→→∞o, what are the voltages across each resistor? (e) For t→→ ∞o, what is the voltage across the capacitor? (f) Once the circuit has nearly reached equilibrium, the switch is reopened. What is the current in each resistor right after the switch is reopened? The equivalent circuit will be super useful here; note that when we change the circuit by opening the switch, the capacitor is no longer in steady state - do not assume its current is zero! (g) How long after the switch is reopened does it take for the current in R3 to drop to half of the value it had immediately after the switch was reopened?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Direct-current Circuits

Section: Chapter Questions

Problem 28.14P: (a) When the switch S in the circuit of Figure P28.14 is closed, will the equivalent resistance...

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