FUNDAMENTALS OF PHYSICS - EXTENDED
12th Edition
ISBN: 9781119773511
Author: Halliday
Publisher: WILEY
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Chapter 26, Problem 20P
To determine
To find:
The resistance of the second wire
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Chapter 26 Solutions
FUNDAMENTALS OF PHYSICS - EXTENDED
Ch. 26 - The following table give the lengths of three...Ch. 26 - Three wires, of the same diameter, are connected...Ch. 26 - During the 4.0 min a 5.0 A current is set up in a...Ch. 26 - An isolated conducting sphere has a 10 cm radius....Ch. 26 - A charged belt, 50 cm wide, travels at 30 m/s...Ch. 26 - The United States National Electric Code, which...Ch. 26 - SSM WWW A beam contains 2.0 108 doubly charged...Ch. 26 - A fuse in an electric circuit is a wire that is...Ch. 26 - Prob. 8PCh. 26 - The magnitude Jr of the current density in a...
Ch. 26 - The magnitude J of the current density in a...Ch. 26 - What is the current in a wire of radius R = 3.40...Ch. 26 - Near Earth, the density of protons in the solar...Ch. 26 - Prob. 13PCh. 26 - A human being can be electrocuted if a current as...Ch. 26 - SSM A coil is formed by winding 250 turns of...Ch. 26 - Copper and aluminium are being considered for a...Ch. 26 - Prob. 17PCh. 26 - SSM What is the resistivity of a wire of 1.0 mm...Ch. 26 - Prob. 20PCh. 26 - ILW A common flashlight bulb is rated at 0.30 A...Ch. 26 - Kiting during a storm. The legend that Benjamin...Ch. 26 - Prob. 23PCh. 26 - SSM ILW A wire with a resistance of 6.0 is drawn...Ch. 26 - SSM WWW Two conductors are made of the same...Ch. 26 - Prob. 29PCh. 26 - Prob. 30PCh. 26 - Prob. 31PCh. 26 - Prob. 33PCh. 26 - A certain brand of hot-dog cooker works by...Ch. 26 - Thermal energy is produced in a resistor at a rate...Ch. 26 - SSM A 1220 V potential difference is applied to a...Ch. 26 - ILW An unknown resistor is connected between the...Ch. 26 - A student kept his 6.0 V, 7.0 W radio turned on at...Ch. 26 - SSM ILW A 1250 W radiant heater is constructed to...Ch. 26 - A copper wire of cross-sectional area 2.00 106 m2...Ch. 26 - A heating element is made by maintaining a...Ch. 26 - Exploding shoes. The rain-soaked shoes of a person...Ch. 26 - A 100 W lightbulb is plugged into a standard 120 V...Ch. 26 - GO The current-density magnitude in a certain...Ch. 26 - A 120 V potential difference is applied to a space...Ch. 26 - SSM A Nichrome heater dissipates 500 W when the...Ch. 26 - Prob. 56PCh. 26 - An 18.0 W device has 9.00 V across it. How much...Ch. 26 - An aluminum rod with a square cross section is 1.3...Ch. 26 - A cylindrical metal rod is 1.60 m long and 5.50 mm...Ch. 26 - The chocolate crumb mystery. This story begins...Ch. 26 - SSM A steady beam of alpha particles q = 2e...Ch. 26 - A resistor with a potential difference of 200 V...Ch. 26 - A 2.0 kW heater element from a dryer has a length...Ch. 26 - cylindrical resistor of radius 5.0 mm and length...Ch. 26 - A potential difference V is applied to a wire of...Ch. 26 - The headlights of a moving car require about 10 A...Ch. 26 - A 500 W heating unit is designed to operate with...Ch. 26 - How much electrical energy is transferred to...Ch. 26 - A caterpillar of length 4.0 cm crawls in the...Ch. 26 - A steel trolley-car rail has a cross-sectional...Ch. 26 - A coil of current-carrying Nichrome wire is...Ch. 26 - Prob. 74PCh. 26 - A certain x-ray tube operates at a current of 7.00...Ch. 26 - A current is established in a gas discharge tube...
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- The current-versus-voltage behavior of a certain electrical device is shown in Figure OQ27.9. When the potential difference across the device is 2 V, what is its resistance? (a) 1 (b) 34 (c) (d) undefined (e) none of those answersarrow_forward. A certain wire has a resistance R. What is the resistance of a second wire, made of the same material, that is twice as long and has half the diameter?arrow_forwardA copper wire has a diameter 4.75 mm and resistivity 1.6 x 10-8 Ωm. What will be the length of this wire to make a resistance of 20Ω. What will be the new resistance, if the radius is doubled?arrow_forward
- A wire has a resistance of 21.0 Q. It is melted down, and from the same volume of metal a new wire is made that is three times longer than the original wire. What is the resistance of the new wire?arrow_forwardA wire of radius R and length L has a resistance of 14 N. What is the resistance of a wire made from the same material that has twice the radius and fivetimes the length?arrow_forwardA wire of radius R and length L has a resistance of 14 Ω. What is the resistance of a wire made fromthe same material that has twice the radius and five times the length?arrow_forward
- Wire 1 has a resistance of 0.3 ohms. Wire 2 is made of the same material as wire but is three times longer and has a diameter 1.5 times the diameter of wire 1. What is the resistance of wire 2?arrow_forwardA wire has a length of 8.0 m and is made of copper which has a resistivity of 1.7 x 10-8 Ωm. This wire has a diameter of .01 m. What is the resistance of this wire?arrow_forwardWhat happens to the resistance of a piece of wire if you double its length and halve its radius? Hint: The cross sectional area of a cylindrical wire is A = Tr² Tr2 The new resistance is 4 times the old resistance. The new resistance is 1/4 times the old resistance. The new resistance is 1/8 times the old resistance. The new resistance is 8 times the old resistance.arrow_forward
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