Essential University Physics: Volume 2 (3rd Edition)
3rd Edition
ISBN: 9780321976420
Author: Richard Wolfson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 25, Problem 46P
In the circuit of Fig. 25.30, find (a) the current supplied by the battery and (b) the current through the 6-Ω resistor.
FIGURE 25.30 Problems 46 and 47
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In Fig. , the battery has negligible internal resistance and E = 48.0 V. R1 = R2 = 4.00 Ω and R4 = 3.00 Ω. What must the resistance R3 be for the resistor network to dissipate electrical energy at a rate of 295 W?
When a R = 90.7 Q resistor is connected across a 12 V battery, a current of 124.2 mA flows.
What is the
internal resistance of the battery and Terminal voltage of the battery ?
(a) internal resistance of the battery(in 2) =
(b) Terminal voltage of the battery in V =
%3D
When a R = 91.3 Q resistor is connected across a 12.3 V battery, a current of 123.1 mA flows. What is the
internal resistance of the battery and Terminal voltage of the battery ?
R
(a) internal resistance of the battery(in 2) =
(b) Terminal voltage of the battery in V =
Chapter 25 Solutions
Essential University Physics: Volume 2 (3rd Edition)
Ch. 25.1 - The figure shows three circuits. Which are...Ch. 25.2 - Rank front highest to lowest the voltages across...Ch. 25.2 - The figure shows all four possible combinations of...Ch. 25.2 - The figure shows a circuit with three identical...Ch. 25.3 - Which circuit(s) cannot be analyzed using series...Ch. 25.4 - All resistors in the figure have the same value...Ch. 25.5 - A capacitor is charged to 12 V and then connected...Ch. 25 - Are household electrical outlets connected in...Ch. 25 - All the resistors in Fig. 25.24 have the same...Ch. 25 - Can the voltage across a batterys terminals differ...
Ch. 25 - Can the voltage across a batterys terminals he...Ch. 25 - In some cities, streetlights are wired in such a...Ch. 25 - When the switch in Fig. 25.25 is open, whats the...Ch. 25 - Two identical resistors in series dissipate equal...Ch. 25 - When a large electric load such as a washing...Ch. 25 - How would you connect a pair of equal resistors...Ch. 25 - You have a battery whose voltage and internal...Ch. 25 - A student whos confused about voltage and current...Ch. 25 - A student whos confused about voltage and current...Ch. 25 - Sketch a circuit diagram for a circuit that...Ch. 25 - Sketch a diagram for a circuit consisting of two...Ch. 25 - Resistors R1 and R2 are in series, and the series...Ch. 25 - Whats the emf of a battery that delivers 27 J of...Ch. 25 - A 1.5-V battery stores 4.5 kJ of energy. How long...Ch. 25 - If you accidentally leave your car headlights...Ch. 25 - A 47-k resistor and a 39-k resistor are in...Ch. 25 - What resistance should you place in parallel with...Ch. 25 - A defective starter motor draws 300 A from a cars...Ch. 25 - Find the internal resistance of the battery in...Ch. 25 - When a 9-V battery is temporarily short-circuited,...Ch. 25 - You have a 1.0-, a 2.0-, and a 3.0- resistor. What...Ch. 25 - Find all three currents in the circuit of Fig....Ch. 25 - Prob. 26ECh. 25 - Find all three currents in the circuit of Fig....Ch. 25 - Prob. 28ECh. 25 - An ammeter with 100- resistance is inserted in the...Ch. 25 - A new mechanic foolishly connects an ammeter with...Ch. 25 - Show that the quantity RC has the units of time...Ch. 25 - If capacitance is in F, what will he the units of...Ch. 25 - Show that a capacitor is charged to approximately...Ch. 25 - An uncharged 10-F capacitor and a 470-k resistor...Ch. 25 - Find an expression for the voltage across the...Ch. 25 - In Fig. 25.28, all resistors have the same value,...Ch. 25 - In Fig. 25.28, take all resistors to be 1 k Find...Ch. 25 - Three 1.5-V batteries, with internal resistances...Ch. 25 - A partially discharged car battery can be modeled...Ch. 25 - Your company is overstocked on 50- , 12-W...Ch. 25 - Prob. 41PCh. 25 - How many 100-W, 120-V lightbulbs can be connected...Ch. 25 - You company is designing a battery-based backup...Ch. 25 - Take = 12 V and R1 = 270 in Fig. 25.4. (a) Whats...Ch. 25 - In Fig. 25.29, R1 is a variable resistor and the...Ch. 25 - In the circuit of Fig. 25.30, find (a) the current...Ch. 25 - In Fig. 25.30, how much power is dissipated in the...Ch. 25 - Whats the ammeter reading in Fig. 25.31? FIGURE...Ch. 25 - In Fig. 25.32, find the equivalent resistance...Ch. 25 - Find all three currents in the circuit of Fig....Ch. 25 - The voltage across the 30-k resistor in Fig. 25.33...Ch. 25 - In Fig. 25.34, what are the meter readings when an...Ch. 25 - A resistor draws 1.00 A from an ideal 12.0-V...Ch. 25 - The voltage across a charging capacitor in an RC...Ch. 25 - Youre designing an external defibrillator that...Ch. 25 - A capacitor is charged until it holds 5.0 J of...Ch. 25 - A capacitor is charged until it holds 5.0 J of...Ch. 25 - In Fig. 25.35 the 2.0-F capacitor is charged to...Ch. 25 - For the circuit of Example 25.6, take = 100 V,...Ch. 25 - In Fig. 25.36, the switch is initially open and...Ch. 25 - Prob. 61PCh. 25 - An ammeter with resistance 1.42 is connected...Ch. 25 - In Fig. 25.37, take 1 = 12.0 V, 2 = 6.00 V, 3 =...Ch. 25 - With all values except 2 as given in the preceding...Ch. 25 - The voltage on a charged capacitor is monitored...Ch. 25 - Find the resistance needed in an RC circuit to...Ch. 25 - Suppose the currents into and out of a circuit...Ch. 25 - Show that a battery delivers the most power when...Ch. 25 - Youre writing the instruction manual for a stereo...Ch. 25 - Show that only half the total energy drawn from a...Ch. 25 - Find the equivalent resistance between A and B for...Ch. 25 - Prob. 72PCh. 25 - Obtain an expression for the rate of increase...Ch. 25 - The circuit in Fig. 25.39 extends forever to the...Ch. 25 - Figure 25.40 on the next page shows the voltage...Ch. 25 - Figure 25.41 shows a portion of a circuit used to...Ch. 25 - An electrochemical impulse traveling along the...Ch. 25 - A parallel-plate capacitor has plates of area...Ch. 25 - Write the node and loop equations for the circuit...Ch. 25 - In Problem 60, take C1 = C2 = C, and find the...Ch. 25 - Youre about to purchase a battery. Normally,...Ch. 25 - In the circuit of Fig. 25.42 the switch is...Ch. 25 - BIO Stray voltage is a serious problem on dairy...Ch. 25 - BIO Stray voltage is a serious problem on dairy...Ch. 25 - BIO Stray voltage is a serious problem on dairy...Ch. 25 - BIO Stray voltage is a serious problem on dairy...
Additional Science Textbook Solutions
Find more solutions based on key concepts
The voltage across a charging capacitor in an RC circuit rises to 1 1/e of the battery voltage in 5.0 ms. (a) ...
Essential University Physics (3rd Edition)
A 0.25-kg skeet (clay target) is fired at an angle of 28 to the horizon with a speed of 25 m/s (Fig. 9–54). Whe...
Physics for Scientists and Engineers with Modern Physics
20. How are amides and carboxylic acids related to each other? How are they different from each other?
Conceptual Physical Science (6th Edition)
The angular momentum about the axle of the rotating bar.
College Physics: A Strategic Approach (3rd Edition)
Which is larger?
7. 1 L or 1 mL
Applied Physics (11th Edition)
Two cars emerge side by side from a tunnel. Car A is traveling with speed of 60 km/h and has an acceleration of...
Physics: Principles with Applications
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
- If the terminals of a battery with zero internal resistance are connected across two identical resistors in series, the total power delivered by the battery is 8.00 W. If the same battery is connected across the same resistors in parallel, what is the total power delivered by the battery? (a) 16.0 W (b) 32.0 W (c) 2.00 W (d) 4.00 W (e) none of those answersarrow_forwardExplain why R=R0(1 + a?T) for the temperature variation of the resistance R of an object is not as accurate as P=P0(1 + a?T) which gives the temperature variation of resistivity P.arrow_forwardA 12.0-V emf automobile battery has a terminal voltage of 16.0 V when being charged by a current of 10.0 A. (a) What is the battery’s internal resistance? (b) What power is dissipated inside the battery? (c) At what rate (in °C/min ) will its temperature increase if its mass is 20.0 kg and it has a specific heat of 0.300 kcal/kg • °C, assuming no heat escapes?arrow_forward
- Question 4: Consider the circuit shown in Fig.T 8.3. The termi- nal voltage of the 24.0-V battery is 21.2 V. What are (a) the inter- nal resistance r of the battery and (b) the resistance R of the circuit resistor? 4.00 A ↓ r 24.0 V ww R www Figure.T 8.3 ↑ 4.00 Aarrow_forwardA battery with emf, & = 15 V, has a terminal voltage of 12.8 V when it is delivering 18.5 W of power to a circuit resistor with unknown resistance, R. (a) Find the resistance of the unknown resistor. R = Ω (b) What is the internal resistance of the battery? Ω r =arrow_forwardFour resistors are connected in a circuit with a battery of unknown emf, as shown below. The battery is ideal, so it has no internal resistance. The current in the 30 2 resistor is 100. milliamps. Note that you should be able to do this problem without a calculator. + 20 2 60 Ω 30 2 80 Q (a) Calculate the current in the 60 resistor. (b) Calculate the current in the 80 N resistor. mA (c) Calculate the power dissipated in the 20 2 resistor. (d) Calculate the current in the battery. mAarrow_forward
- 24.0 V 4.00 A R 4.00 A Figure N 8. Consider the circuit shown in Figure b. The terminal voltage of the 24.0 V battery is 21.2 V. What is a) the internal resistance r of the battery; b) the resistance R of the circuit resistor???arrow_forwardWhen a R = 88.3 Q resistor is connected across a.11.3 V battery, a current of 114.4 mA flows. What is the internal resistance of the battery and Terminal voltage of the battery ? A E(MF) Restemal CAternal Rinternall (a) internal resistance of the battery(in 2) =- (b) Terminal voltage of the battery in V = Batteryarrow_forwardFour resistors are connected in a circuit with a battery of unknown emf, as shown below. The battery is ideal, so it has no internal resistance. The current in the 30 2 resistor is 100. milliamps. Note that you should be able to do this problem without a calculator. 20 2 60 Ω 30 2 80 2 (a) Calculate the current in the 60 N resistor. 50 V mA (b) Calculate the current in the 80 N resistor. 150 V mA (c) Calculate the power dissipated in the 20 N resistor. 0.45 (d) Calculate the current in the battery. 300 X mAarrow_forward
- Suppose you wanted to charge an initially uncharged 110 pF capacitor through a 55 MΩ resistor to 90.0% of its final voltage. How much time (in s) would be required to do this?arrow_forwardIf one wants to design a 1500 W electrical heater that consists of a resistor R with V = 208 V across it, what value should be chosen for R?arrow_forwardWhen a R = 89.4 Q resistor is connected across a 11.1 V battery, a current of 114.4 mA flows. What is the internal resistance of the battery and Terminal voltage of the battery ? A E(MF) Rexternal Rinternal (a) internal resistance of the battery(in 2) = (b) Terminal voltage of the battery in V = Batteryarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegePhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Ohm's law Explained; Author: ALL ABOUT ELECTRONICS;https://www.youtube.com/watch?v=PV8CMZZKrB4;License: Standard YouTube License, CC-BY