Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 20.2, Problem 1bTH
- The circuit at right consists of a bulb in series with an electrical “black box.”
The following are possible contents for the “black box.” All the bulbs are identical. Box C consists of a single piece of connecting wire.
Suppose that each of the five boxes is placed, in turn, into the circuit. (Only one box is in the circuit at a time.)
b. Use the model that we have developed to rank the five circuits according to the brightness of the indicator bulb in those circuits.
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What is the equivalent resistance of a Red-Green-Brown resistor in series with a parallel combination of Brown-Green-Red and Orange-Black-Red resistors? Show your work.
A triangular array of resistors is shown in the figure on the right. What current will this array draw from a 35.0V battery having negligible internal resistance if we connect it across a.) ab; b.) bc and c.) ac?
Part D) Now apply the loop rule to loop 1 (the larger loop spanning the entire circuit). Sum the voltage changes across each circuit element around this loop going in the direction of the arrow.
Express the voltage drops in terms of Vb, I1, I3, the given resistances, and any other given quantities.
Answer=Σ(ΔV)=0=
It is still saying incorrect because the correct answer does not depend on: I2, R2. Can you explain why that is and what the correct equation would be?
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...
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