In Figure P28.67, suppose the switch has been closed for a length of time sufficiently long for the capacitor to become fully charged. (E = 8.50 V, r = 10 kn, and r2 = 16 kn.) =10.0 µF 8 3.00 k2 Figure P28.67 (a) Find the steady-state current in each resistor. I = 1.32 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. µA I2 = 4.32 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. HA I3-kA = 0 µA (b) Find the charge Q on the capacitor. 8.83 Your response differs from the correct answer by more than 10%. Double check your calculations. µC (c) The switch is opened at t = 0. Write an equation for the current IR, in R2 as a function of time. O (327 µA)e-t/(0.190 s) O (275 µA)et/(0.190 s) (275 µA)e-t/(0.190 s) O (327 µA)et/(0.190 s) (d) Find the time that it takes for the charge on the capacitor to fall to one-fifth its initial value. ms

In Figure P28.67, suppose the switch has been closed for a length of time sufficiently long for the capacitor to become fully charged. (E = 8.50 V, r = 10 kn, and r2 = 16 kn.) =10.0 µF 8 3.00 k2 Figure P28.67 (a) Find the steady-state current in each resistor. I = 1.32 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. µA I2 = 4.32 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. HA I3-kA = 0 µA (b) Find the charge Q on the capacitor. 8.83 Your response differs from the correct answer by more than 10%. Double check your calculations. µC (c) The switch is opened at t = 0. Write an equation for the current IR, in R2 as a function of time. O (327 µA)e-t/(0.190 s) O (275 µA)et/(0.190 s) (275 µA)e-t/(0.190 s) O (327 µA)et/(0.190 s) (d) Find the time that it takes for the charge on the capacitor to fall to one-fifth its initial value. ms

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Direct-current Circuits

Section: Chapter Questions

Problem 25P: In the circuit of Figure P27.25, the switch S has been open for a long time. It is then suddenly...

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Consider a series RC circuit as in Figure P28.38 for which R = 1.00 M, C = 5.00 F, and = 30.0 V. Find (a) the time constant of the circuit and (b) the maximum charge on the capacitor after the switch is thrown closed. (c) Find the current in the resistor 10.0 s after the switch is closed.
Figure P29.60 shows a simple RC circuit with a 2.50-F capacitor, a 3.50-M resistor, a 9.00-V emf, and a switch. What are a. the charge on the capacitor, b. the current in the resistor, c. the rate at which the capacitor is storing energy, and d. the rate at which the battery is delivering energy exactly 7.50 s alter the switch is closed?
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