Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Chapter 7, Problem 1MIO
To determine
The concept map and determine that one concept that unifies the map and reason for it.
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Hi, can you help me to understand this problem by helping me through STEP BY STEP solution. The answer is given in the photo that i provide and here is the problemDetermine the resistance of a 1-mile length of 12-gauge copper wire. Given: 1 mile = 1609 meters and diameter = 0.2117 cm.
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In the circuit shown, two identical 1.5 V batteries (with the positive or high potential ends colored orange) are connected to three identical bulbs, A, B, and C. The current in bulb A is I0.A. What is the current in bulb B? Express your answer as a number multiplied by I0, and enter that number here: _____ × I0B. What is the current in bulb C? Express your answer as a number multiplied by I0, and enter that number here: _____× I0Suppose that each of the bulbs has a resistance of 50 Ω.C. Calculate I0, the current in bulb A.I0 = _______ amps
Chapter 7 Solutions
Inquiry into Physics
Ch. 7 - Describe one promising explanation for how...Ch. 7 - Loud thunder claps frequently accompany lightning...Ch. 7 - What does the term fibrillation mean in connection...Ch. 7 - Prob. 1PIPCh. 7 - Prob. 2PIPCh. 7 - Prob. 1MIOCh. 7 - Prob. 2MIOCh. 7 - Prob. 1QCh. 7 - Prob. 2QCh. 7 - Prob. 3Q
Ch. 7 - Prob. 4QCh. 7 - Prob. 5QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 7QCh. 7 - Prob. 8QCh. 7 - Prob. 9QCh. 7 - Prob. 10QCh. 7 - Prob. 11QCh. 7 - Prob. 12QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 14QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 16QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 19QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 24QCh. 7 - Prob. 25QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 29QCh. 7 - (Indicates a review question, which means it...Ch. 7 - (Indicates a review question, which means it...Ch. 7 - Prob. 32QCh. 7 - Prob. 33QCh. 7 - Prob. 34QCh. 7 - (Indicates a review question, which means it...Ch. 7 - Two charged particles exert an electric force of...Ch. 7 - What would the separation between two identical...Ch. 7 - A particle having a positive charge of C...Ch. 7 - During 30 seconds of use, 250 C of charge flow...Ch. 7 - A lightning stroke lasts 0.05 s and involves a...Ch. 7 - A current of 0.7 A goes through an electric motor...Ch. 7 - A calculator draws a current of 0.0001 A for 5...Ch. 7 - Prob. 8PCh. 7 - A 120-V circuit in a house is equipped with a 20-A...Ch. 7 - . The resistance of each brake lightbulb on an...Ch. 7 - . The lightbulb used in a computer projector has a...Ch. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - . An electric eel can generate a 400-V, 0.5-A...Ch. 7 - . An electric train operates on 750 V. What is its...Ch. 7 - . All of the electrical outlets in a room are...Ch. 7 - . Your cell phone typically consumes about 400 mW...Ch. 7 - . A car’s headlight consumes 40 W when on low beam...Ch. 7 - . Find the current that flows in a 40-W bulb used...Ch. 7 - . An electric clothes dryer is rated at 4,000 W....Ch. 7 - . A clock consumes 2 W of electrical power. How...Ch. 7 - . Which costs more, running a 1,200-W hair dryer...Ch. 7 - . A representative lightning strike is caused by a...Ch. 7 - Prob. 25PCh. 7 - . A certain electric motor draws a current of 10 A...Ch. 7 - . The generator at a large power plant has an...Ch. 7 - . A lightbulb is rated at 60 W when connected to...Ch. 7 - . About 40,000 J of energy is stored in a typical...Ch. 7 - . An electric car is being designed to have an...Ch. 7 - Prob. 31PCh. 7 - Compute the electric force acting between the...Ch. 7 - Use the result from Challenge land the equation...Ch. 7 - Prob. 3CCh. 7 - Using your understanding of the nature of internal...Ch. 7 - The current that flows through an incandescent...Ch. 7 - Prob. 6CCh. 7 - Imagine a company offering a line of hair dryers...Ch. 7 - Prob. 8CCh. 7 - Combine Ohm’s law and the equation for power...Ch. 7 - A defibrillator sends approximately 0.1 C of...
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- To deal with electrical circuits it is necessary to define: Ohm's Law, where the electric force is the product of the resistance and the electric current, described by the equation: E = R*i and Kirchhoff's Laws in which we have the Law of Nodes, where the sum of the currents entering any node is equal to the sum of the currents that come out of it, and the Law of Meshes, where the sum of the voltage drops along any circuit is equal to the total voltage around the circuit (supplied by the batteries). Numerically, we can analyze the case below where we want to determine the electric circuit currents (i1,i2, and i3). Analyzing the circuit electrical system above, build a linear system with three equations and the three variables (i1,i2, and i3). Write in matrix form and solve using the scilab software.arrow_forwardReferencing the picture, Can I ask for an explanation as to why can we measure resistance with a pencil drawn on a piece of paper? What is the component/material that is on the pencil that gives a high resistance? With the values given on the images, what are the corresponding color codes (indicate tolerance using a 4-band color code scheme)? If the first value is connected in series with the other value, what is the total resistance? If it’s parallel what is the total resistance?arrow_forwardWhat is the smallest possible resistance you can get by connecting a 40 Ohm, 60 Ohm, and 120 Ohm resistor together?arrow_forward
- What is the minimum number of 78 ohms resistors that must be connected in parallel to produce an equivalent resistance of 11 ohms or less?arrow_forwardA resistor of 9 ohms is carrying a current of 4 amperes. What is the voltage that would be measured between one side of the resistor and the other? Give your answer in volts as a number without units or other symbols.arrow_forwardAn electric water heater is designed to produce 48 kWkW of heat when it is connected to a 240-V source. If the heater is 88 %% efficient, how long would it take to heat 51 galgal of water from 20∘C∘C to 60 ∘∘? Express your answer using two significant figures.arrow_forward
- Consider an electrical circuit comprising a battery with voltage V that provides a current I through a resistor network with resistor R1 in series with the parallel combination of R2 and R. Calculate the value of R if: V I R1 R2 2.40E+01 2.40E-01 7.50E+01 5.00E+01 Make sure to express your answer in scientific notation with 2 decimal points.arrow_forwardWhat is the terminal voltage (in V) of a large 1.65 V carbon-zinc dry cell used in a physics lab to supply 1.20 A to a circuit, if the cell's internal resistance is 0.300 Ω? How much electrical power (in W) does the cell produce? What power (in W) goes to its load?arrow_forwardConsider a simple circuit consisting of a battery, a closed switch, and a resistor. The voltage across the battery is 1.72 V, and the current through the resistor is 3.93 A. If the resistor is a cylindrical resistor of length 0.06 m made of a material with resistivity of 5.6x10-6 ohm-meters, what is the cross-sectional area of the resistor element? Your answer should be in m2.arrow_forward
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