Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 129DQ
Consider a pair of flashlight bulbs connected to a battery. Do they glow brighter if they are connected in series or in parallel? Does the battery run down faster if they are connected in series or in parallel?
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A 0.75μF capacitor is charged to 100 V . It is then connected in series with a 55Ω resistor and a 120 Ω resistor and allowed to discharge completely.
Question: How much energy is dissipated by the 55Ω resistor?
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What percentage of the initial energy stored in the three capacitors is dissipated in the 400 $2 resistor?
Express your answer using two decimal places.
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What percentage of the initial energy stored in the three capacitors is dissipated in the 16 kf2 resistor?
Express your answer using two decimal places.
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I think you didn't account for the 10 V battery that gets placed in between A and B. I just don't understant why R2 and R3 become parallel to each other after placing the battery. So the answer is actully to add R1 and R2 and then find the Parallel ones, so Req = (1/(R1+R2)+ 1/R3)^-1. My question is how do you know which one you do first? Adding the parallel ones or the serial ones?
Chapter 8 Solutions
Conceptual Physical Science (6th Edition)
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Ch. 8 - Give two examples of common force fields.Ch. 8 - How is the direction of an electric field defined?Ch. 8 - In terms of the units that measure them,...Ch. 8 - A balloon may easily be charged to several...Ch. 8 - What condition is necessary for a sustained flow...Ch. 8 - How much energy is given to each coulomb of charge...Ch. 8 - Does electric charge flow across a circuit or...Ch. 8 - Distinguish between dc and ac.Ch. 8 - Does a battery produce dc or ac? 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