An RC circuit, comprising a charged capacitor in series with a resistor and a switch,has R = (6.40x10^0) kOhm and C= (3.070x10^O) uF (10-6 F). The capacitor is at fullvoltage Vo at t = 0, when the switch is closed. How long does it take the capacitor todischarge to 1.0 percent of its initial voltage? Give your answer in seconds to 3 sf.Note: Your answer is assumed to be reduced to the highest power possible.Your Answer:x10Answer

GivenR=6.4 k ohm=6.4×103 ohmC=3.07 μF=3.07×10-6 F

An RC circuit, comprising a charged capacitor in series with a resistor and a s has R = (6.40x10^0) kOhm and C = (3.070x10^0) uF (10-6 F). The capacitor i voltage Vo at t = 0, when the switch is closed. How long does it take the capa %3D %3D discharge to 1.0 percent of its initial voltage? Give your answer in seconds to Note: Your answer is assumed to be reduced to the highest power possible. Your Answer:

An RC circuit, comprising a charged capacitor in series with a resistor and a s has R = (6.40x10^0) kOhm and C = (3.070x10^0) uF (10-6 F). The capacitor i voltage Vo at t = 0, when the switch is closed. How long does it take the capa %3D %3D discharge to 1.0 percent of its initial voltage? Give your answer in seconds to Note: Your answer is assumed to be reduced to the highest power possible. Your Answer:

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 72PQ: A capacitor with initial charge Q0 is connected across a resistor R at time t = 0. The separation...

See similar textbooks

Similar questions

An ECG monitor must have an KC time constant lessthan 1.00102s to be able to measure variations involtage oversmall time intervals, (a) If the resistance of the circuit (duemostly to that of the patient's chest) is 1.00kTwhat is the maximum capacitance of the circuit?(b) Would It be difficult in practice to limit the capacitance to less than the value found in (a)?
A pair of capacitors with capacitances CA = 3.70 F and CB = 6.40 F are connected in a network. What is the equivalent capacitance of the pair of capacitors if they are connected a. in parallel and b. in series?
Assume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed pulse duration = 50.0 m/s 2.0 103 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in Figure P18.43. Model the axon as a parallel-plate capacitor and take C = 0A/d and Q = C V to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.0 108 m, axon radius r = 1.0 101 m, and cell-wall dielectric constant = 3.0. (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. How many K+ ions are on the outside of the axon assuming an initial potential difference of 7.0 102 V? Is this a large charge per unit area? Hint: Calculate the charge per unit area in terms of electronic charge e per squared (2). An atom has a cross section of about 1 2 (1 = 1010 m). (b) How much positive charge must flow through the cell membrane to reach the excited state of + 3.0 102 V from the resting state of 7.0 102 V? How many sodium ions (Na+) is this? (c) If it takes 2.0 ms for the Na+ ions to enter the axon, what is the average current in the axon wall in this process? (d) How much energy does it take to raise the potential of the inner axon wall to + 3.0 102 V, starting from the resting potential of 7.0 102 V? Figure P18.43 Problem 43 and 44.
In the RC circuit below, Vs-17, R = 1kQ2, and the capacitor =51 µF. if, initially, the switch is at position A and the capacitor is fully charged, what time, seconds (to two decimal places), will it take V to reach 4 Volts after the switch is moved from position A to position B? Vs A B R Vx
An RC circuit takes t = 1.58 s to charge to 45% when a voltage of ΔV = 5.5 V is applied and it has an R=1.5Ω. How much charge, in coulombs, is on the plates of the capacitor when it is fully charged?
Using your data, answer the following questions: a. To three decimal places, what fraction of the total charge does a capacitor in an RC circuit have after charging for 4.15 time constants; the fraction f such that q(4.15t) = fQmax
A 10^-8 F capacitor (10 nanofarads) is charged to 100 V and then disconnected. One can model the charge leakage of the capacitor with a RC circuit with no voltage source and the resistance of the air between the capacitor plates. On a cold dry day, the resistance of the air gap is 5 x 10^13 ohms; on a humid day, the resistance is 8 x 10^6 ohms. How long will it take the capacitor voltage to dissipate to half its original value on each day?
In the circuit below, the values of the capacitors are C1=9.38uF, C2=2.99uF, C3=5.18uF. The voltage of the battery is 5.53V.What is the charge (uC) on capacitor C2 to 3 sig figs?
A capacitor with capacitance C = 5 µF is charged to a voltage V = 10V. It is then discharged through a resistor R=2 MQ. At what time after the start of the discharge process has the voltage across the capacitor fallen to 1V?
In the circuit shown, the capacitor has an initial charge of Qo at t=0. When the switch S is closed at t=0, the capacitor takes 38 s for its charge to drop to 50% of Qo. Find the time (in seconds) it takes the charge to drop to 30% of Qo
A 10-9-F capacitor (1 nanofarad) is charged to 100 V and then disconnected. One can model the charge leakage of the capacitor with a RC circuit with no voltage source and the resistance of the air between the capacitor plates. On a cold dry day, the resistance of the air gap is 5x 1013 2; on a humid day, the resistance is 6x 10° 2. How long will it take the capacitor voltage to dissipate to half its original value on each day? On the dry day, it will take seconds. (Use scientific notation. Round to three decimal places as needed.)
A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having a total internal resistance of 3.40 MO. After a time of 4.00 s the voltmeter reads 3.0 V. What are (a) the capacitance and (b) the time constant of the circuit?