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 20.3, Problem 2cTH
Summarize your results by describing the behavior of bulb A and of bulb B from just after theswitch is closed until a long time later.
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Imagine building a circuit using a perfect insulator (a device of infinite resistance, which allows no current flow) in place of the carbon resistor
a. Would the plot of the data be a straight line?
b. If yes, what would the slope of that line be? If no, what shape would the line be?
For the Electrical Circuit shown, calculate the current running through
each resistor . You will need to sketch and/or label the resistors so I can interpret your
results. Show the voltage drop across each resistor, also.
This requires consideration of a parallel and series resistors together. Solve for the overall
resistance of the parallel resistors, then put it in series with the other. Eventually solve for
the current in each of the parallel resistors.
Sketch:
S Ohms
3 Ohms
6 Ohms
12 V
Explain in words why the circuit in figure 6 charges the capacitor, while the circuit in figure 7 discharges the capacitor. Remember, current only flows in closed loops!
2. How can a linear fit be used to measure the capacitance C for both charging and discharging a capacitor given the capacitor voltage V(t) at different times? Take a natural logarithm of both sides of the voltage equations V(t) (Refer to Graphical Presentation of Exponential Decay Section).
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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