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 6.2, Problem 2eT
Answer the following questions based on the measurement you have made so far.
1. Does the current through the battery depend on the circuit to which it is connected? Explain.
2. Does the potential difference across the battery depend on the circuit to which it is connected? Explain.
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The voltage V (volts), current I (amperes), and resistance R (ohms) of an electric circuit like the one shown here are related by the equation V=IR. Suppose that V is
1
increasing at the rate of 3 volt/sec while I is decreasing at the rate of amp/sec. Let t denote time in seconds. Answer the following questions.
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dV
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b. What is the value of dt?
volt/sec (Simplify your answer.)
OA.
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amp/sec (Simplify your answer.)
c. What equation relates to
dR
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dR dV
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dR
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dt
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and dt?
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d. Find the rate at which R is changing when V = 40 volts and 1= 4 amp. Is R increasing or decreasing?
R is changing at ohm/sec. (Simplify your answer.)
Is R increasing or decreasing?
dR
dt
dR
dt
=
1 dv
I'dt
1 (dV
1
dt
V dl
I dt
F
R
www
An electron is fired at a speed v 4.3 x 10 m/s and at an angle 8 = 39.7 between two parallel conducting plates as shown in the
figure. If s 1.7 mm and the voltage difference between the plates is AV= 99.8 V, determine how close, w. the electron will get to the
bottom plate. Put your answer in meters and include at 6 decimal places in your answer. Do not include units. The x-axis of the
coordinate system is in the middle of the parallel plate capacitor.
Round your answer to 6 decimal places.
In the schematic below two batteries are in series and drive current through the circuit as shown.
The first resistor has a voltage drop AV1= 2 V, the middle resistor has a resistance of R = 69 Q, and
the last resistor has a voltage drop AV2 = 1.1 V. Given these parameters, what is the magnitude of
current flowing through the circuit in milli-amps (mA)? Giver your answer to 3 significant figures.
3.0 V
4.5 V
AV.
Chapter 6 Solutions
Tutorials in Introductory Physics
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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