Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 20.1, Problem 3bTH
A wire is now added to the circuit as shown.
i. Does the brightness of bulb C increase, decrease, or remain the same? Explain your reasoning.
ii. Does the brightness of bulb Aincrease, decrease, or remain the same? Explain.
iii. Does the current through the battery increase, decrease or remain the same? Explain.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Consider the following circuit
ww
R1
R2
where V = 10.0V, R2= 10.0k2 and R3 = 20.0kN.
1. Are the resistors connected in series or parallel?
2. What is the equivalent resistance of the resistor pair.
3. Use V = IR and the equivalent resistance to find the total current though the battery.
4. How much current flows through each of the two original resistors? (Hint: Note that each of the two resistors
has the same voltage across them so you can use ohms law for each of them.)
5. Sum the two currents together, do you get the current through the battery?
ww
Consider the following circuit
R1
V
R2
where V = 30V, R2 = 30 and R = 30.
1. Are the resistors connected in series or parallel?
2. What is the equivalent resistance of the resistor pair.
3. Use V = IR and the equivalent resistance to find the total current though the battery.
%3D
4. How much current flows through each of the two original resistors?
ww
B. The circuit at right has three resistors, R1, R2 and
R2 connected with two ideal batteries. The three
R1
20 Q
currents in each leg of the circuit are labeled as ią, ib,
and i, as shown.
la
ic
R2
i.
Apply Kirchhoff's laws to the circuit and write
the three equations that represent the circuit below.
40 Q
R3
80 Q
+
BAT1
9 V
ВАТ2
12 V
ii.
Solve the system of equations to find as ia, ib, and ic. Show your work.
Chapter 20 Solutions
Tutorials in Introductory Physics
Ch. 20.1 - In tutorial, you compared the relative brightness...Ch. 20.1 - Use the model for electric current to rank the...Ch. 20.1 - Rang the brightness of the bulbs. Explain your...Ch. 20.1 - A wire is now added to the circuit as shown. i....Ch. 20.1 - Rank the networks according to their equivalent...Ch. 20.1 - How does adding a single bulb to a circuit in...Ch. 20.1 - How does adding a single bulb to a circuit in...Ch. 20.1 - The network AE above are connected, in turn, to...Ch. 20.1 - Rank the bulbs in order from brightest to dimmest....Ch. 20.1 - Suppose that a switch has been added to the...
Ch. 20.2 - The circuit at right consists of a bulb in series...Ch. 20.2 - The circuit at right consists of a bulb in series...Ch. 20.2 - The circuit at right consists of a bulb in series...Ch. 20.2 - In the circuit at right, the voltage across bulb 1...Ch. 20.2 - Prob. 2bTHCh. 20.2 - Box A and box B are now interchanged. It is...Ch. 20.2 - Consider the circuit as shown. i. Rank bulbs A, B,...Ch. 20.2 - b. A student cuts the write between bulbs A and C...Ch. 20.2 - Consider the following discussion between two...Ch. 20.2 - Rank bulbs 16 in order or brightness. Explain your...Ch. 20.2 - Rank the voltages across the bulbs. Explain your...Ch. 20.2 - Write an equation that relates the voltage across...Ch. 20.2 - Bulb 1 is removed from its socket. i. Does the...Ch. 20.3 - Describe the behavior of the bulb in the two...Ch. 20.3 - A second identical bulb is flow added to the...Ch. 20.3 - Just after the switch is closed: • what is the...Ch. 20.3 - A long time after the switch is closed: • rank the...Ch. 20.3 - Summarize your results by describing the behavior...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Write the SI unit for each abbreviation.
29. 27 mm
Applied Physics (11th Edition)
56. A container holds 1.0 g of oxygen at a pressure of 8.0 atm.
a. How much heat is required to increase the te...
College Physics: A Strategic Approach (4th Edition)
The correct option.
College Physics: A Strategic Approach (3rd Edition)
Consider the following debate between two students regarding the energy given off by the Sun.
Student 1: I thin...
Lecture- Tutorials for Introductory Astronomy
Choose the best answer to each of the following. Explain your reasoning. In Ptolemys geometric model, the retro...
The Cosmic Perspective Fundamentals (2nd Edition)
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
- In the circuit shown, A & C are identical light bulbs, and B is a different bulb. It's a 1.5 V battery. 5a. If we add another bulb, D, of the same type as A & C, into the same line as C, what will the potential difference across it be? Why? A B 5b. Explain whether bulb D will be brighter, dimmer or the same as bulb C and why. C 6a. If the potential difference across bulb A is 1V, then what is the potential difference across bulb B? Explain why. 6b. Will bulb A will be brighter, dimmer or the same as bulb B under the simplifying (but impossible) assumption of 100% efficient bulbs where all the energy is output to the environment as light and not heat. Explain why. 6c. What, if anything, changes about your previous answer if bulb B is 100% efficient while bulb A is 50% efficient (so its energy leaves half as light and half as heat). Explain why.arrow_forwardA 9V battery is connected to a bulb with a resistance of 60ohms and resistor with a resistance of 50ohms in series. i. What is the total resistance of the circuit? ii. Compute for the current flowing in the circuit. i. If the resistor and bulb are connected in parallel, compute for the total current.arrow_forwardb. A 60-volts potential difference is applied to the circuit below. i. Find the equivalent resistance of the circuit, ii. The current in the circuit, iii. The current in the 10-ohm resistor. 40 BOV 140 100 c. Calculate the resistance per unit length of a 22-gauge Nichrome wire of radius 0.321 mm.arrow_forward
- 4a. Find the current in the circuit (magnitude and direction) 4b. Find the potential difference of V_ab of point a with respect to point b. 4c. Find the potential difference of V_bc of point b with respect to point c. 4d. What is the total rate at which electrical energy dissipatate in R1, R2, and R3 resistors. 4e. What is the power output of the 26V battery? 4f. At what rate is the electrical energy being converted to other forms in the 10V battery? 4g. Show that the power output of the 26V battery equals the overall rate of dissipation of electrical energy in the rest of the circuit?arrow_forwardFor the circuit shown in the Figure B21. Assume E=12V, R1, R2=2K2 and R3-3K2. Calculate, i. Output voltage (Vo) ii. Current flowing through resistor R1 ii. Current flowing through resistor R3 RI Si E Vo Si R3 Figure B21 ww.iarrow_forwardIn the circuit shown, R 1= 5Ω, R2 = 6 Ω, R3 = 7 Ω, E1 = 9 V, E2 = 5 V and E3 = 12 V.A. Solve for the currents I1,I2, and I3 using Kirchhoff’s rules.B. What is the potential difference Vaf ?arrow_forward
- battery (ɛ = 10V) is connected the six light bulbs (L, through L6) in the following circuit. All light bulbs have the same resistance of 10 N. After the switch K is closed, the bulbs are lit up. Which of the followings are true %3D I. L3 and L bulbs have equal brightness II. If L, and L2 bulbs burn out, no other bulb in the circuit will glow. III. The EMF source generates new electrons and supplies them to the electric circuit.arrow_forwardThe parallel circuit at the right depicts two resistors connected to a voltage source. The voltage source (AVtot) is a 12-V source and the resistor values are 7.4 Q (R,) and 3.9 Q (R2). a. Determine the equivalent resistance of the circuit. [ Select ] b. Determine the current in each branch resistor: Current in R, = [Select] Current in R, = [Select ] %3D C. Determine the total current in the circuit. Select ]arrow_forward40. Two resistors R1 = 62 and R2= 120 are connected in parallel to each other and in series to R3 = 20. An ammeter measures an electric current of 3A flowing though resistor R3. What is the current in 120 resistor? Show your calculation. R3 R2arrow_forward
- 4a. Find the current in the circuit (magnitude and direction). 4b. Find the potential difference of V_ab of point a with respect to point b. 4c. Find the potential difference of V_bc of point b with respect to point c. 4d. What is the totatl rate at which electrical energy is dissipate in R1, R2, and R3 resistors. 4e. What is the power output of the 26.0V battery? 4f. At what rate is the electrical energy being converted to other forms in the 10.0V battery? 4g. Show that power output of the 26.0V battery equals the overall rate of dissipation of electrical energt in the rest of the circuit?arrow_forwardIn the circuit shown, two identical 1.5 V batteries (with the positive or high potential ends colored orange) are connected to three identical bulbs, A, B, and C. The current in bulb A is I0.A. What is the current in bulb B? Express your answer as a number multiplied by I0, and enter that number here: _____ × I0B. What is the current in bulb C? Express your answer as a number multiplied by I0, and enter that number here: _____× I0Suppose that each of the bulbs has a resistance of 50 Ω.C. Calculate I0, the current in bulb A.I0 = _______ ampsarrow_forwardA. What is the effect on the current in a wire if the voltage is doubled and the resistance is halved? (Let Ohm's law guide your thinking. Let I0 be the initial current and I be the current after the voltage and the resistance are changed.) Express your answer using three significant figures I/I0= B. What is the effect on the current in a wire if the voltage is halved and the resistance is doubled? Express your answer using three significant figures. I/I0=arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Series & Parallel - Potential Divider Circuits - GCSE & A-level Physics; Author: Science Shorts;https://www.youtube.com/watch?v=vf8HVTVvsdw;License: Standard YouTube License, CC-BY