Tutorials In Introductory Physics: Homework
1st Edition
ISBN: 9780130662453
Author: Lillian C. McDermott, Peter S. Shaffer
Publisher: PEARSON
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Textbook Question
Chapter 6.1, Problem 1dT
Carefully examine a bulb. Two wires extend from the filament of the bulb into the base. You probably cannot see into the base, however, you should be able to make a good guess as to where the wires are attached. Describe where the wires attach. Explain based on your observations in Parts A-C.
On the basis of the observations that we have made, we will make the following assumptions:
1. A flow exists in a complete circuit from one terminal of the battery, through the rest of the circuit, back to the other terminal of the battery, through the battery and back around the circuit. We will call this flow
2. For identical bulbs, bulb brightness can be used as an indicator of the amount of current through that bulb: the brighter the bulb, the greater the current.
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PART A
Use the technique of simplifying this circuit using equivalent resistances into smaller, simpler circuits.
Given the following circuit:
R1
Vs
>R2
R3
If R1 = 15 Q2, R2 = 24 S2, R3 = 12 Q2, and Vs = 14.7 Volts, determine the circuit equivalent resistance
(REQ) and the circuit current (I). Also calculate the branch currents through R2 and R3, and the voltage
drops across R1, R2, and R3.
Part A
In the circuit shown in (Figure 1), S, has been
closed for a long enough time so that the current
reads a steady 3.35 A. Suddenly, Sz is closed and
Si is opened at the same instant. Assume that
L= 23 mH and C =5.8 µF.
What is the maximum charge that the capacitor will receive?
Express your answer in millicoulombs.
?
Qmax =
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Part B
What is the current in the inductor at this time?
Express your answer in amperes.
Figure
1 of 1
A
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Consider the circuit shown in (Figure 1). The batteries
have emfs of E = 9.0 V and E2 = 12.0 V and the
resistors have values of R1 = 28 N, R2 = 68 N, and
Rз 3 34 N.
Part C
Determine the magnitudes of the currents in each resistor shown in the figure. Assume th
resistance r = 1.0 N.
Express your answers using two significant figures separated by commas.
Templates Symbols undo rédo reset keyboard shortcuts help
ΑΣΦ
Figure
I1, I2, I3 =
А
1 of 1
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Submit
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R1
X Incorrect; Try Again; 3 attempts remaining
Ej
R2
Part D
E2=
R3
Determine the directions of the currents in each resistor. Assume that each battery has in
Chapter 6 Solutions
Tutorials In Introductory Physics: Homework
Ch. 6.1 - Obtain a battery, a light bulb, and a single piece...Ch. 6.1 - A student has briefly connected a wire across the...Ch. 6.1 - Light a bulb using a battery and a single wire....Ch. 6.1 - Carefully examine a bulb. Two wires extend from...Ch. 6.1 - Compare the brightness of the two bulb with each...Ch. 6.1 - Compare the brightness of each of the bulbs in the...Ch. 6.1 - We may think of a bulb as percentage an obstacle,...Ch. 6.1 - Compare the brightness of the bulbs in this...Ch. 6.1 - Is the brightness of each bulb in the two-bulb...Ch. 6.1 - Formulate a rule for predicting how the current...
Ch. 6.1 - Does the amount of current through a battery seem...Ch. 6.1 - Unscrew one of the bulbs in the two-bulb parallel...Ch. 6.1 - The circuit at tight contains three identical...Ch. 6.1 - Show that a simple application of the model for...Ch. 6.2 - The circuits at right contain identical batteries,...Ch. 6.2 - The circuits at right contain identical batteries...Ch. 6.2 - Predict the relative brightness of bulbs...Ch. 6.2 - Set up the circuit with a single bulb and the...Ch. 6.2 - Set up the circuit containing two bulbs in series...Ch. 6.2 - Predict what the voltmeter would read if it were...Ch. 6.2 - Set up the circuit with two bulbs in parallel as...Ch. 6.2 - Answer the following questions based on the...Ch. 6.2 - Set up the circuit with three bulbs as shown and...Ch. 6.2 - Before setting up the circuit shown at right:...Ch. 6.2 - Both circuits al right have more than one path for...Ch. 6.3 - A capacitor is connected to a battery, bulb, and...Ch. 6.3 - Remove the capacitor and the bulb from the...Ch. 6.3 - Suppose an uncharged capacitor is connected in...Ch. 6.3 - Suppose that instead of connecting the uncharged...Ch. 6.3 - Suppose that the bulbs were connected in parallel...Ch. 6.3 - After completing the experiments above, two...Ch. 6.3 - Suppose that a different capacitor of smaller...Ch. 6.3 - Before connecting the circuit a student makes the...Ch. 6.3 - Make the following prediction on the basis of your...
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