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 4aTH
Rank bulbs 1−6 in order or brightness. Explain your reasoning.
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An electron is fired at a speed v = 3.1 x 10° m/s and at an angle 0, = 36.8° between two parallel
conducting plates as shown in the figure. If s 1.8 mm and the voltage difference between the plates is
AV = 98.8 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.
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Consider the following electrical circuit
...
R1
R3
R2
The current through the circuit (in amps) is determined by the voltage through the circuit (in volts) divided by the resistance (in
ohms) through the circuit.
Complete the script to calculate the total current through the circuit
This is the script for calculating the total current of the circuit
R1 = 5;
R2 = 10;
R3 = 2;
V = 6;
RI = 1/( (1/Blank 1)+(1/Blank 2)) +Blank 3
I = Blank 4/Blank 5
Blank 1
Add your answer
Blank 2
Add your answer
Blank 3
Add your answer
Blank 4
Add your answer
Blank 5
Add your answer
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.
5
dV
dt
=
dl
dt
dl
b. What is the value of dt?
volt/sec (Simplify your answer.)
OA.
O C.
amp/sec (Simplify your answer.)
c. What equation relates to
dR
dt
dR dV
dt dt
dR
dt
1 dV dl
+V-
I dt
dt
dl
dv
=1+VdT
dt
dl
and dt?
OB.
O D.
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
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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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