Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Question
Chapter 20.2, Problem 2bTH
To determine
The resistance of box B compared to the resistance of bulb
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Students have asked these similar questions
Applying Kirchoff's Rules
If in the circuit shown, V1 = 4V, V2 = 12V, R1 = 3 Ohms, R2 = 1 Ohm, and R3 = 3 Ohms, the
current I₁ is
amps, the current I2 is
amps, the
current I3 is
decimal point.)
+
V1
R2
amps. (Provide answer with one digit to the right of the
R3
I2
13
R1
www
V2
+
A circuit is constructed as shown in the diagram to the right. R1 = 22 Ω, R2 = 54 Ω, R3 = 83 Ω, and R4 = 64 Ω.
Write an equation for the equivalent resistance of the circuit in terms of the individual resistances.
Calculate for the equivalent resistance of the circuit in ohms.
The combined electrical resistance R of two resistors R, and R. connected in parallel, is given by the equation below, where R, R₁, and are measured in ohms. R₁ and R, are increasing at rates of 0.5 and 2.0 ohms per second, respectively.
1 1 1
R₁+R₂
At what rate is R changing when R, 32 ohms and R₂ = 75 ohms? (Round your answer to three decimal places.)
0.573
xohm/sec
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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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- Consider the circuit shown in (Figure 1). Suppose that 1=32 A Figure www 100: 2/1 30 (2 www 15+ www 102 60 www + 1 of 1 Part C Find the value of 2. Express your answer to three significant figures and include the appropriate units. 12= Submit D μÅ Value Request Answer Unitsarrow_forwardPart (b): Watts, volts, and ohms are SI units that can be expressed in the 'base' SI units as follows: kg-m² 53 ohm = kg-m² $³.A21 watt = volt= bottle cm kg.m² $3.A' (Recall that 'A' is the abbreviation for an ampere.) Use algebra and the equation at the top of the page (P=V²/R) to show that the base SI units for watts equal the base SI units for volts²/ohms. You do not need any numbers in this algebraic exercise. Instead, treat each of the base SI units (kg, m, s, A) as if it were an algebra variable (like x or y). Start with the following equation and substitute the base SI units for watt, volt, and ohm: watt = volt² ohmarrow_forwardUse the orders of magnitude you found in the previous problem to answer the following questions to within an order of magnitude. (a) How many electrons would it take to equal the mass of a proton? (b) How many Earths would it take to equal the mass of the Sun? (c) How many Earth-Moon distances would it take to cover the distance from Earth to the Sun? (d) How many Moon atmospheres would it take to equal the mass of Earth’s atmosphere? (e) How many moons would it take to equal the mass of Earth? (f) How many protons would it take to equal the mass of the Sun? For the remaining questions, you need to use Figure 1.4 to obtain the necessary orders of magnitude of lengths, masses, and times.arrow_forward
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