EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 25.4, Problem 1DE
To determine
The resistance after changing the length.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
If the 0.100-mm diameter tungsten filament in a light bulb is to have a resistance of 0.200 Ω at 20.0°C, how long should it be?
If the 0.100-mm-diameter tungsten filament in a light bulb is to have a resistance of 0.200Ω at 20.0 °C , how long should it be?
If the 0.140 mm diameter tungsten filament in a light bulb is to have a resistance of 0.290 Ω at 20.0°C, how long should it be?
Chapter 25 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 25.2 - If 1 million electrons per second pass a point in...Ch. 25.2 - Prob. 1BECh. 25.3 - Return to the Chapter-Opening Question, page 651,...Ch. 25.4 - Prob. 1DECh. 25.4 - Prob. 1EECh. 25.4 - Prob. 1FECh. 25.4 - How many 60-W 120-V lightbulbs can operate on a...Ch. 25.6 - Each channel of a stereo receiver is capable of an...Ch. 25 - What quantity is measured by a battery rating...Ch. 25 - When an electric cell is connected to a circuit,...
Ch. 25 - When a flashlight is operated, what is being used...Ch. 25 - One terminal of a car battery is said to be...Ch. 25 - When you turn on a water faucet, the water usually...Ch. 25 - Can a copper wire and an aluminum wire of the same...Ch. 25 - The equation P = V2/R indicates that the power...Ch. 25 - What happens when a lightbulb burns out?Ch. 25 - If the resistance of a small immersion heater (to...Ch. 25 - Prob. 10QCh. 25 - Explain why lightbulbs almost always burn out just...Ch. 25 - Which draws more current, a 100-W lightbulb or a...Ch. 25 - Electric power is transferred over large distances...Ch. 25 - A 15-A fuse blows repeatedly. Why is it dangerous...Ch. 25 - When electric lights are operated on low-frequency...Ch. 25 - Driven by ac power, the same electrons pass back...Ch. 25 - The heating element in a toaster is made of...Ch. 25 - Is current used up in a resistor? Explain.Ch. 25 - Compare the drift velocities and electric currents...Ch. 25 - A voltage V is connected across a wire of length l...Ch. 25 - Why is it more dangerous to turn on an electric...Ch. 25 - Prob. 1PCh. 25 - Prob. 2PCh. 25 - Prob. 3PCh. 25 - Prob. 4PCh. 25 - Prob. 5PCh. 25 - Prob. 6PCh. 25 - Prob. 7PCh. 25 - Prob. 8PCh. 25 - Prob. 9PCh. 25 - Prob. 10PCh. 25 - Prob. 11PCh. 25 - Prob. 12PCh. 25 - Prob. 13PCh. 25 - Prob. 14PCh. 25 - Prob. 15PCh. 25 - (II) A rectangular solid made of carbon has sides...Ch. 25 - (III) A hollow cylindrical resistor with inner...Ch. 25 - Prob. 63GP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew = 2R0) while the voltage is adjusted such that the current is constant, what are the ratios (a) Pnew/P0 and (b) Vnew/V0? If, instead, the resistance is held constant while Pnew = 2P0, what are the ratios (c) Vnew/V0, and (d) Inew/I0?arrow_forwardA copper wire has a resistance of 50 ohms. What will be the strength of another copper wire whose cross section is double and length three times as long?arrow_forwardA person with body resistance between his hands of 10.0 kΩ accidentally grasps the terminals of a 20.0-kV power supply. (Do NOT do this!) If the internal resistance of the power supply is 2000Ω , what is the current through his body?arrow_forward
- A high tension (HT) supply of, say, 6 kV must have a very large internal resistance. Why?arrow_forwardA given copper wire has a resistance of 5.00 Ω at 20.0°C whilea tungsten wire of the same diameter has a resistance of 4.75 Ωat 20.0°C. At what temperature will the two wires have thesame resistance?arrow_forwardA copper wire has a resistance of 0.49 Ω at 20.0°C, and an iron wire has a resistance of 0.57 Ω at the same temperature. a) At what temperature, in degrees Celsius, are their resistances equal? The temperature coefficient of copper is 3.9 * 10^-3 (degrees Celsius)^-1, while that for iron is 5.0 * 10^-3 (degrees Celsius)^-1.arrow_forward
- Suppose you wish to fabricate a uniform wire from 1.00 g of copper. If the wire is to have a resistance of R = 0.500 Ω and all the copper is to be used, what must be (a) the length and (b) the diameter of this wire?arrow_forwardThe temperature coefficient of a certain conducting material is 4.78 × 10-3 (°C)-1. (a) At what temperature would the resistance be 3 times the resistance at 20.0°C? (Use 20.0°C as the reference point in ρ-ρ0=ρ0α(T-T0).) (b) Does this temperature hold for all copper conductors, regardless of shape or size?arrow_forwardAn electronic device designed to operate at any temperature in the range from −10.0 °C to 55.0 °C contains pure carbon resistors. By what factor does their resistance increase over this range?arrow_forward
- Calculate the ratio of the resistance of 20.0 m of copper wire 1.8 mm in diameter to10.0 m of aluminum wire 2.0 mm in diameter, (i.e. RCuRAl= ?)(a) 1.25 (b) 1.49(c) 1.56(d) 1.65(e) None of the abovearrow_forwardConsider a cylindrical ohmic wire with the following dimensions: length = 10.0 m, radius = 0.05 m. When the ends of the wire were connected to a 2.0 V voltage source, a 1.0 A current through the wire was measured. Determine the resistivity of the wire. Choices: 3.93 x10^-4 Ω-m, 1.57 x 10^-3 Ω-m, 3.14 x 10^-2 Ω-m, 3.92 x 10^-2 Ω-m, 1.57 x 10^-1 Ω-marrow_forwardA copper wire has a resistance of 0.480 Ω at 20.0°C, and an iron wire has a resistance of 0.519 Ω at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 10-3(°C)−1 and for iron it is 5.00 10-3(°C)−1. _____°Carrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning