51. (II) In the circuit shown in Fig. 26-68, switch S is closed at time t = 0. (a) After the capacitor is fully charged, what is the voltage across it? How much charge is on it? (b) Switch S is now opened. How long does it now take for the capacitor to discharge until it has only 2.0% of its initial charge? S 12.0 V FIGURE 26-68 Problem 51. 5 10 Ω C=2.2 μF 9.00 510.0 Ω 35.0 Ω

51. (II) In the circuit shown in Fig. 26-68, switch S is closed at time t = 0. (a) After the capacitor is fully charged, what is the voltage across it? How much charge is on it? (b) Switch S is now opened. How long does it now take for the capacitor to discharge until it has only 2.0% of its initial charge? S 12.0 V FIGURE 26-68 Problem 51. 5 10 Ω C=2.2 μF 9.00 510.0 Ω 35.0 Ω

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Select the letter of the correct answer from the given problem. *Kindly provide a CLEAR and COMPLETE solution* (Answer should be typewritten) *Please answer it ASAP
Solve the equivalent capacitance for the circuit below
What inductance will give the same reactance as a capacitor of 2 µF when both are at 50 Hz? 5 H 10 H 15 H 20 H
Caculate the time for 21(Tau) in (milliseconds) for the following RC Circuit. Assume switch is closed and capacitor is in a charge state. t=0 LE -10 V R1 1kQ C1 1uF
QUESTION 5 A parallel-plate capacitor with square plates 1.4 cm by 1.4 cm is charged to +1 nC on one plate and -1 nC on the other. The capacitor is filled with a dielectric with a relative dielectric permittivity of ε =4.0 Calculate the electric field inside this capacitor and enter the value in kV/m to three significant figures. You will need calculator for this question, and take care when converting units.
Question 4 An inductor wound with an insulated conductor was first energized using a DC power supply and a current of 9A passed through the inductor coil and a voltage of 4.5 V was measured across it's terminals. Following the DC test, the inductor was connected to a 24 V ACsupply with a rated frequency of 25Hz. The current of 9A was recorded during the AC energization. Calculate the following: (a) Impedance, Resistance and Inductance of the coil. (b) Power and power factor.(c) Power and power factor when supplied by a 50V and 50Hz source.
Find the equivalent capacitance of the figure given below
Question 24
The capacitance of a capacitor increases with a decrease in Plate area Plate separation Dielectric constant Permittivity
Find the value of the capacitor voltage at steady state when the switch is closed.
Assuming the capacitor is fully charged, what is the voltage across the capacitor 2 seconds after the switch is opened? E=33 V, R1=300 kſ, R2=300 k, C=10 uF R2 R1 ww + 55.2 V None of the above 31.5 V 47.3 V 23.6 V 39.4 V #6 C
The capacitance of a certain variable capacitor may be varied between limits of 1 × 10-20 F and 5×10-10 F by turning a knob attached to the movable plates. The capacitor is set to 5 × 10-10 F, and is charged by connecting it to a battery of EMF 200 V. What is the charge on the plates? The battery is then disconnected and the capacitance changed to 1 × 10-10 F. Assuming that no charge is lost from the plates, what is now the potential difference between them? How much mechanical work is done against electrical forces in changing the capacitance?