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 4bTH
Rank the voltages across the bulbs. Explain your reasoning.
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Both circuits have a 12V battery and three 3-ohm resistors, but they are connected very differently. The series circuit on the left shows the three resistors in series. The parallel circuit on the right shows the three resistors in parallel. Select all the statements below that are true. Select 3:
27.3 new circuit.JPG
Group of answer choices
In the left series circuit, the equivalent resistance is 1 ohm.
In the right parallel circuit, voltage across each resistor is the same.
Both circuits dissipate the same amount of power.
In the right parallel circuit, the equivalent resistance is 9 ohm.
In the left series circuit, current is the same through all resistors.
In the right parallel circuit, the equivalent resistance is 1 ohm.
Solve the following problems. Show and COMPLETE solutions. Draw the CIRCUIT DIAGRAM or the equivalent circuit
1. Three resistors, 11 Ω , 7 Ω, 20 Ω are connected in parallel. If placed in a circuit with a 12-volt power supply. Determine the equivalent resistance, the total circuit current, and the voltage drop across and current in each resistor, the total power supplied to the circuit.
Describe the relationship between
voltage, current, and resistance.
Provide graphs as needed for further
explanation.
Limit your answer to at most ten sentences.
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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- Simply the circuit to get the equivalent circuit. Show all circuits step by step. R1= 8 ohms, R2= 30 ohms, R3= 6 ohms, R4= 9 ohms, V= 54V A. What is the equivalent resistance?B. What is the current in R2?C. What is the potential difference across R3?D. What is the power dissipated in R4?arrow_forwardWhat happens to bulbs B and C if there is a short placed across bulb Aas shown below? Explain your reasoning.arrow_forwardLast summer, a Meralco electrician conducts a record of the electrical voltage supply readings within 5 hours at Cavite City. (See the table below) 1. Represent a graph showing the voltage readings as y-values and the time as x-values. 2. Is the graph continuous or not?arrow_forward
- m 2R R 3. The new symbol you see in the diagram at the left is a multicell battery (like a 9V), which is made up of a number of smaller single cell batteries (like a 1.5V). Let's say its total voltage is V. A. Which resistor takes the most voltage? B. What is the total resistance? C. In variables, what is the current in the circuit? D. How does the voltage used by the 2R compare with R? E. In variables, what is the voltage used by the 2R resistor?arrow_forwardDescribe how the current flowing through the resistor varied as the voltage was increased? Based on the graph, What do the slopes of the best fit lines represent? Explain Do you consider the resistor as ohmic? Why or why not?arrow_forwardThree resistors having resistances of 4.0 Ω, 6.0 Ω, and 10.0 Ω are now connected in series. If the combination is connected to an ideal 12-V. What is the total resistance of the circuit? What is the current through each resistor? What is the voltage drop across each resistor? What is the power dissipated by the 6.0 Ω resistor? Clearly state the formulae you’re using and what your letters/symbols mean.arrow_forward
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