Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
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Textbook Question
Chapter 29, Problem 13PQ
Eight real batteries, each with an emf of 5.00 V and an internal resistance of 0.200 Ω, are connected end to end in a loop as in Figure P29.13. What is the terminal voltage across one of the batteries between points a and b?
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Copyright © 2006 Steven G. Johnson and donated
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Electrogenic fish, like electric eels, have the ability to create fairly large voltages that can be used for defense or to stun their prey (see
the photo). The electric eel has three organs along the length of its body that allow it to produce electricity. The organs contain special
cells, called electrocytes, that can generate a voltage of 0.15 V/cell. When aligned, the cells resemble a stack of capacitors connected in
series that allow a current of ions to flow through them. Eels are capable of producing a discharge at 860 V with a current of 1.0 A. (a)
How much electrical power is delivered by the eel during a discharge? Use the information above. (b) How many cells would have to be
aligned to produce a discharge voltage of 860 V? (c) What is the ratio of the capacitance of a single electrocyte to that of the equivalent
capacitance of the entire stack of cells?
(a) Number
(b) Number
(c) Number
Units
Units
Units
◄►
Copyright © 2006 Steven G. Johnson and donated
to Wikipedia under…
31. For the circuit shown in Fig-
ure P23.31, find the current
through and the potential differ-
ence across each resistor. Place
your results in a table for ease of
reading.
FIGURE P23.31
6.0 Ω
24 V
www
6.0 Ω
15 Ω
4.0 Ω
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Chapter 29 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 29.1 - What are the SI units of ?Ch. 29.1 - Prob. 29.2CECh. 29.2 - Prob. 29.3CECh. 29.4 - Prob. 29.5CECh. 29.4 - Prob. 29.6CECh. 29.5 - Prob. 29.7CECh. 29 - Study the symbols in Table 29.2. Then, without...Ch. 29 - Prob. 2PQCh. 29 - Prob. 3PQCh. 29 - Suppose you need to measure the potential...
Ch. 29 - Prob. 5PQCh. 29 - Prob. 6PQCh. 29 - A real battery (modeled as an ideal emf device in...Ch. 29 - Prob. 8PQCh. 29 - Two circuits made up of identical ideal emf...Ch. 29 - Prob. 10PQCh. 29 - Prob. 11PQCh. 29 - Prob. 12PQCh. 29 - Eight real batteries, each with an emf of 5.00 V...Ch. 29 - Prob. 14PQCh. 29 - Prob. 15PQCh. 29 - Prob. 16PQCh. 29 - Prob. 17PQCh. 29 - Prob. 18PQCh. 29 - Prob. 19PQCh. 29 - An ideal emf device with emf is connected to two...Ch. 29 - Prob. 21PQCh. 29 - Prob. 22PQCh. 29 - Prob. 23PQCh. 29 - Prob. 24PQCh. 29 - Prob. 25PQCh. 29 - Prob. 26PQCh. 29 - Determine the currents through the resistors R2,...Ch. 29 - The emf devices in the circuits shown in Figure...Ch. 29 - Prob. 29PQCh. 29 - Prob. 30PQCh. 29 - Prob. 31PQCh. 29 - Prob. 32PQCh. 29 - Prob. 33PQCh. 29 - Prob. 34PQCh. 29 - A Figure P29.35 shows a combination of six...Ch. 29 - A Each resistor shown in Figure P29.36 has...Ch. 29 - Each resistor shown in Figure P29.36 has a...Ch. 29 - Prob. 38PQCh. 29 - Prob. 39PQCh. 29 - The emf in Figure P29.40 is 4.54 V. The...Ch. 29 - Figure P29.41 shows three resistors (R1 = 14.0 ,...Ch. 29 - Figure P29.42 shows five resistors and two...Ch. 29 - The emfs in Figure P29.43 are 1 = 6.00 V and 2 =...Ch. 29 - Prob. 44PQCh. 29 - Figure P29.45 shows five resistors connected...Ch. 29 - Figure P29.46 shows a circuit with a 12.0-V...Ch. 29 - Two ideal emf devices are connected to a set of...Ch. 29 - Two ideal emf devices are connected to a set of...Ch. 29 - Three resistors with resistances R1 = R/2 and R2 =...Ch. 29 - Prob. 51PQCh. 29 - Prob. 52PQCh. 29 - Prob. 53PQCh. 29 - Prob. 55PQCh. 29 - At time t = 0, an RC circuit consists of a 12.0-V...Ch. 29 - A 210.0- resistor and an initially uncharged...Ch. 29 - Prob. 58PQCh. 29 - A real battery with internal resistance 0.500 and...Ch. 29 - Figure P29.60 shows a simple RC circuit with a...Ch. 29 - Prob. 61PQCh. 29 - Prob. 62PQCh. 29 - Prob. 63PQCh. 29 - Ralph has three resistors, R1, R2, and R3,...Ch. 29 - Prob. 65PQCh. 29 - An ideal emf device is connected to a set of...Ch. 29 - Prob. 67PQCh. 29 - An ideal emf device (24.0 V) is connected to a set...Ch. 29 - Prob. 69PQCh. 29 - What is the equivalent resistance between points a...Ch. 29 - A capacitor with initial charge Q0 is connected...Ch. 29 - Prob. 73PQCh. 29 - Prob. 74PQCh. 29 - Prob. 75PQCh. 29 - Prob. 76PQCh. 29 - Figure P29.77 shows a circuit with two batteries...Ch. 29 - In the RC circuit shown in Figure P29.78, an ideal...Ch. 29 - Prob. 79PQCh. 29 - Calculate the equivalent resistance between points...Ch. 29 - In Figure P29.81, N real batteries, each with an...Ch. 29 - Prob. 82PQCh. 29 - Prob. 83PQCh. 29 - Prob. 84PQCh. 29 - Figure P29.84 shows a circuit that consists of two...Ch. 29 - Prob. 86PQCh. 29 - Prob. 87PQCh. 29 - Prob. 88PQCh. 29 - Prob. 89PQCh. 29 - Prob. 90PQCh. 29 - Prob. 91PQCh. 29 - Prob. 92PQCh. 29 - Prob. 93PQCh. 29 - Prob. 94PQCh. 29 - Prob. 95PQ
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- The 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_forwardIn Figure P29.81, N real batteries, each with an emf and internal resistance r, are connected in a closed ring. A resistor R can be connected across any two points of this ring, causing there to be n real batteries in one branch and N n resistors in the other branch. Find an expression for the current through the resistor R in this case.arrow_forwardWhat is the equivalent resistance between points a and b of the six resistors shown in Figure P29.70? FIGURE P29.70arrow_forward
- 48 V + #F 68 ΚΩ www Ic + 20 www. 0 0000 1 22 ΚΩ = 10 nF 12 V Assume the capacitor to be fully discharged before the switch closes to position 1 at t=0: D. Determine equations for Ic(t) and Vc(t) in position 1. After a long time (i.e. >5 T, capacitor fully charged) the switch is moved to position 2: E. Determine equations for Ic(t) and Vc(t) in position 2. F. Provide a sketch of Ic(t) and Vc(t) for both cycles. Please label accordingly. F Vcarrow_forwarda. What are the magnitude and direction of the current in the 18 Ω resistor in Figure P23.7?b. Draw a graph of the potential as a function of the distance traveled through the circuit, traveling clockwise from V = 0 V at the lower left corner. See Figure P23.9 for an example of such a graph.arrow_forwardIn a RC circuit connected to a battery, when the switch S is closed, charge on the capacitor rises to 1 % of the final value in 2 seconds. If the capacitor is 86 μF, what would be the value of R which will charge the capacitor? Choose the closest answer to the value you calculated. 바 10 ΚΩ 50 ΚΩ 2.5 ΚΩ 0.5 ΚΩ 1.5 ΚΩ 5 ΚΩ A. B. C. D. E. F. wwwarrow_forward
- Five resistors with known resistances R1 = 5.00 Ω, R2 = 5.00 Ω, R3 = 7.00 Ω, R4 = 5.00 Ω, and R5 = 6.00 Ω are connected to a battery with emf = 8.00 V as shown in the figure. What are the currents in resistors R1, R2, R3, R4, and R5? What is the absolute value of the potential difference between the points P and P ′?arrow_forwardFour resistors R1=6.00 Ω, R2=10.0 Ω, R3=10.0 Ω, and R4=8.00 Ω are mounted as shown in the figure. The voltage of the battery is V = 16 Volts. What is the current in the R4 resistor?arrow_forwardThe figure displays two circuits with a charged capacitor that is to be discharged through a resistor when a switch is closed. In figure (a) below, R1 = 21.9 Ω and C1 = 5.26 μF. In figure (b) below, R2 = 10.9 Ω and C2 = 8.08 μF. The ratio of the initial charges on the two capacitors is q02/q01 = 1.64. At time t = 0, both switches are closed. At what time t do the two capacitors have the same charge?arrow_forward
- Sketch a potential-versus-location graph for the circuit shown in Figure P19.11. Start at A and move clockwise around the circuit. Figure P19.11 ww 503 Ω A ww 1Ω 12 V + 3 Ω ww + 35 3 Varrow_forwardExamine the circuit. The voltage of the battery is 16V. R1=8.2 ohm, R2=68ohm. C1=12.9uF, C2 = 19.12 uF.The circuit has been connected for a very long time and the current has reached a steady state.What is the potential difference between points a and b?arrow_forwardIn a heart pacemaker, a pulse is delivered to the heart 84 times per minute. The capacitor that controls this pulsing rate discharges through a resistance of 3.9 ✕ 106 Ω. One pulse is delivered every time the fully charged capacitor loses 63.2% of its original charge. What is the capacitance of the capacitor? Farrow_forward
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