Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 30, Problem 75EAP
The 
capacitor in FIGURE P30.75 is initially charged to , 
the 
capacitor is uncharged, and the switches are both open.
a. What is the maximum voltage to which you can charge the 
capacitor by the proper closing and opening of the two switches?
b. How would you do it? Describe the sequence in which you would close and open switches and the times at which you would do so. The first switch is closed at . 
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The switch given has been closed for a very long time.a. What is the charge on the capacitor?b. The switch is opened at t = 0 s. At what time has the charge on the capacitor decreased to 10% of its initial value?
4. The circuit contains four parallel plate capacitors, all initially uncharged and with no dielectric material between their plates. A switch is closed to complete the circuit at time t=0, so current begins to flow at that time and we wait enough time for the capacitors to become (very close to) fully charged.
a. What is the equivalent capacitance of this circuit?
b. What is the charge stored on the 125 µF capacitor?
If we now insert a neoprene rubber dielectric into all of the capacitors, how will the answers change?
c. What is the equivalent capacitance of this circuit?
d. What is the charge stored on the 125 µF capacitor?
When the switch is closed in the figure below, the capacitor charges
with a characteristic time constant 71. On the other hand, when the
capacitor is fully charged and the switch is opened, the capacitor
discharges with a characteristic time constant T2. What is the ratio T1/T2?
R1
a
R2
A. R/(R + R)
B. (R2 + R2)/R1
C. R1/(R + R2)
D. (R1/R2)(1+ R1/R2)
E. 1
Chapter 30 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Ch. 30 - Prob. 1CQCh. 30 - You want to insert a loop of copper wire between...Ch. 30 - A vertical, rectangular loop of copper wire is...Ch. 30 - Does the loop of wire in FIGURE Q30.4 have a...Ch. 30 - s5. The two loops of wire in FIGURE Q30.5 are...Ch. 30 - FIGURE Q30.6 shows a bar magnet being pushed...Ch. 30 - A bar magnet is pushed toward a loop of wire as...Ch. 30 - FIGURE Q30.8 shows a bar magnet. a coil of wire,...Ch. 30 - Prob. 9CQCh. 30 - An inductor with a 2.0 A current stores energy. At...
Ch. 30 - Prob. 11CQCh. 30 - Prob. 12CQCh. 30 - Rank in order, from largest to smallest, the three...Ch. 30 - For the circuit of FIGURE Q30.14: a. What is the...Ch. 30 - The earth’s magnetic field strength is 5.0105T ....Ch. 30 - A potential difference of 0.050 V is developed...Ch. 30 - A 10 -cm-long wire is pulled along a U-shaped...Ch. 30 - What is the magnetic flux through the loop shown...Ch. 30 - FIGURE EX30.5 shows a 10cm10cm square bent at a 90...Ch. 30 - Prob. 6EAPCh. 30 - Prob. 7EAPCh. 30 - FIGURE EX30.8 shows a 2.0 -cm-diameter solenoid...Ch. 30 - Prob. 9EAPCh. 30 - 10. A solenoid is wound as shown in FIGURE...Ch. 30 - 11. The metal equilateral triangle in FIGURE...Ch. 30 - The current in the solenoid of FIGURE EX3O.12 is...Ch. 30 - The loop in FIGURE EX30.13 is being pushed into...Ch. 30 - FIGURE EX30.14 shows a 10-cm-diameter loop in...Ch. 30 - Prob. 15EAPCh. 30 - 16. A -turn coil of wire cm in diameter is in a...Ch. 30 - A 5.0 -cm-diameter coil has 20 turns and a...Ch. 30 - FIGURE EX30.18 shows the current as a function of...Ch. 30 - The magnetic field in FIGURE EX30.19 is decreasing...Ch. 30 - The magnetic field inside a -cm-diameter solenoid...Ch. 30 - Scientists studying an anomalous magnetic field...Ch. 30 - Prob. 22EAPCh. 30 - Prob. 23EAPCh. 30 - Prob. 24EAPCh. 30 - Prob. 25EAPCh. 30 - Prob. 26EAPCh. 30 - How much energy is stored in a -cm-diameter,...Ch. 30 - MRI (magnetic resonance imaging) is a medical...Ch. 30 - Prob. 29EAPCh. 30 - Prob. 30EAPCh. 30 - Prob. 31EAPCh. 30 - Prob. 32EAPCh. 30 - Prob. 33EAPCh. 30 - Prob. 34EAPCh. 30 - At t=0 s, the current in the circuit in FIGURE...Ch. 30 - The switch in FIGURE EX3O.36 has been open for a...Ch. 30 - Prob. 37EAPCh. 30 - Prob. 38EAPCh. 30 - Prob. 39EAPCh. 30 - Prob. 40EAPCh. 30 - A 10cm10cm square loop lies in the xy-plane. The...Ch. 30 - A spherical balloon with a volume of L is in a mT...Ch. 30 - Prob. 43EAPCh. 30 - Prob. 44EAPCh. 30 - Prob. 45EAPCh. 30 - FIGURE P30.46 shows a 4.0-cm-diameter loop with...Ch. 30 - Prob. 47EAPCh. 30 - Prob. 48EAPCh. 30 - Prob. 49EAPCh. 30 - Prob. 50EAPCh. 30 - Prob. 51EAPCh. 30 - Prob. 52EAPCh. 30 - Prob. 53EAPCh. 30 - Prob. 54EAPCh. 30 - Prob. 55EAPCh. 30 - Your camping buddy has an idea for a light to go...Ch. 30 - 57. The -wide, zero-resistance slide wire shown...Ch. 30 - ]58. You’ve decided to make the magnetic...Ch. 30 - FIGURE P30.59 shows a U-shaped conducting rail...Ch. 30 - Prob. 60EAPCh. 30 - Prob. 61EAPCh. 30 - Prob. 62EAPCh. 30 - Equation 30.26 is an expression for the induced...Ch. 30 - Prob. 64EAPCh. 30 - One possible concern with MRI (see Exercise 28) is...Ch. 30 - FIGURE P30.66 shows the current through a 10mH...Ch. 30 - Prob. 67EAPCh. 30 - Prob. 68EAPCh. 30 - Prob. 69EAPCh. 30 - Prob. 70EAPCh. 30 - An LC circuit is built with a inductor and an...Ch. 30 - Prob. 72EAPCh. 30 - For your final exam in electronics, you’re asked...Ch. 30 - The inductor in FIGURE P30.74 is a -cm-long, -cm-...Ch. 30 - The capacitor in FIGURE P30.75 is initially...Ch. 30 - The switch in FIGURE P30.76 has been open for a...Ch. 30 - 77. The switch in FIGURE P30.77 has been open for...Ch. 30 - Prob. 78EAPCh. 30 - Prob. 79EAPCh. 30 - Prob. 80EAPCh. 30 - In recent years it has been possible to buy a 1.0F...Ch. 30 - Prob. 82EAPCh. 30 - Prob. 83EAPCh. 30 - Prob. 84EAPCh. 30 - A 2.0 -cm-diameter solenoid is wrapped with 1000...Ch. 30 - High-frequency signals are often transmitted along...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- The switch in Figure P27.51a closes when Vc23Vand opens when Vc13V. The ideal voltmeter reads a potential difference as plotted in Figure P27.51b. What is the period T of the waveform in terms of R1, R2, and C? Figure P27.51arrow_forward(a) What is the average power output of a heart defibrillator that dissipates 400 J of energy in 10.0 ms? (b) Considering the high-power output, why doesn’t the defibrillator produce serious bums?arrow_forwardThe circuit shown in Figure P28.78 is set up in the laboratory to measure an unknown capacitance C in series with a resistance R = 10.0 M powered by a battery whose emf is 6.19 V. The data given in the table are the measured voltages across the capacitor as a function of lime, where t = 0 represents the instant at which the switch is thrown to position b. (a) Construct a graph of In (/v) versus I and perform a linear least-squares fit to the data, (b) From the slope of your graph, obtain a value for the time constant of the circuit and a value for the capacitance. v(V) t(s) In (/v) 6.19 0 5.56 4.87 4.93 11.1 4.34 19.4 3.72 30.8 3.09 46.6 2.47 67.3 1.83 102.2arrow_forward
- 5. The switch in the figure below has been closed for a very long time. a. What is the charge on the capacitor? b. The switch is opened at t=0 s. At what time has the charge on the capacitor decreased to 10% of its initial value? 600 100 V 40 0 100 2.0 μFarrow_forwardIn the circuit shown in the figure, both capacitors are initially charged to 45.0 V.a. How long after closing the switch S will the potential across each capacitor be reduced to10.0 V?b. What will be the current at that time?arrow_forwardA resistor, an uncharged capacitor, a dc voltage source, and an open switch are all connected in series. The switch is closed at time t = 0 s. What is the charge on the capacitor after two time constants compared to the maximum charge?arrow_forward
- 1. The switch has been in position a for a long time. It is switched to position b at t = 0.0 s 9.0 V a b 27 2.0 μF 50 Ω a. What is the charge Q on the capacitor immediately after the switch is changed? b. What is the current I through the resistor immediately after the switch is changed? c. What is the charge Q on the capacitor at t = 50 μs? d. What is the current I through the resistor at t = 50 µs?arrow_forwardTina the ballarina has this RC circuit she made for school help her figure out the following a. What is the time constant for the RC circuit? b. After how long does the capacitor become 80% charged? c. How much current flows in the R3 resistor at this time? + S I R₁ R₂ C R3 www.h R₁=100 kn R₁-200 kn R₂=300kn C=5.00 μF {=9.00V THE CAPACITOR IS INNITIALY CHARGED WHEN THE SWITCH IS CLOSEDarrow_forwardA capacitor has a potential difference of V0 = 375 V between the plates. When the switch S is closed, it is discharged through a resistor of R = 14.5 kΩ. At time t = 10 seconds after the switch is closed, the potential difference between the capacitor plates equals VC = 1.0 V. a. Calculate the capacitance of the capacitor in farads. b. Calculate the maximum current Imax that passes through the resistor, in Amperes. c. Calculate the current I at time t, in Amperes.arrow_forward
- Q77. Consider the RC circuit depicted below, which contains R1 = 100 kn, R2 = 200 kn, R3 = 300 kn, C = 5.00 µF, and E= 9.00 V. At t = 0, the capacitor is uncharged and the switch is closed. The following questions pertain to the behavior of the circuit. A. Determine the time constant of the RC circuit. B. At what time does the capacitor reach 80% of its maximum charge? C. What is the current flowing through the R3 resistor at that time? R3 www. S 20 ww wwwarrow_forwardThe switch in the figure has been closed for a very long time. Opens at t = 0 s Part A 100 V 60 Ω www 40 Ω ww 10 Q2 What is the charge on the capacitor? 2.0 μF You may want to review (Page 766) . For help with math skills, you may want to review: Solving Equations Using Natural Logarithms HIarrow_forwardChapter 32, Problem 018 Your answer is partially correct. Try again. The circuit in the figure consists of switch S, a 4.50 V ideal battery, a 35.0 M2 resistor, and an airfilled capacitor. The capacitor has parallel circular plates of radius 5.10 cm, separated by 1.50 mm. At time t = 0, switch S is closed to begin charging the capacitor. The electric field between the plates is uniform. At t = 160 µs, what is the magnitude of the magnetic field within the capacitor, at radial distance 3.30 cm? C S R Number Units T. Use correct number of significant digits; the tolerance is +/-1 in the 3rd significant digitarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
What is Electromagnetic Induction? | Faraday's Laws and Lenz Law | iKen | iKen Edu | iKen App; Author: Iken Edu;https://www.youtube.com/watch?v=3HyORmBip-w;License: Standard YouTube License, CC-BY