Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 26, Problem 24SP
To determine
The ratio of the resistance of a nichrome wire to the resistance of a copper wire of same length and diameter kept at same temperature.
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Chapter 26 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 26 - Prob. 20SPCh. 26 - 21. An electron gun in a TV set shoots out a beam...Ch. 26 - 22. What happens to the resistance of a copper...Ch. 26 - Prob. 23SPCh. 26 - Prob. 24SPCh. 26 - 25. What is the current through an 8.0-Ω toaster...Ch. 26 - 26. What potential difference is required to pass...Ch. 26 - 27. Determine the potential difference between the...Ch. 26 - Prob. 28SPCh. 26 - Prob. 29SP
Ch. 26 - 30. An electric utility company runs two 100 m...Ch. 26 - 31. When the insulation resistance between a motor...Ch. 26 - Prob. 32SPCh. 26 - Prob. 33SPCh. 26 - Prob. 34SPCh. 26 - Prob. 35SPCh. 26 - Prob. 36SPCh. 26 - Prob. 37SPCh. 26 - Prob. 38SPCh. 26 - 39. Find the potential difference between points-A...Ch. 26 - Prob. 40SPCh. 26 - 41. In Fig. 26-5, how large must R be if the...Ch. 26 - 26.42 [II] For the circuit of Fig. 26-6, find the...Ch. 26 - Prob. 43SPCh. 26 - Prob. 44SPCh. 26 - Prob. 45SPCh. 26 - Prob. 46SPCh. 26 - Prob. 47SPCh. 26 - Prob. 48SPCh. 26 - Prob. 49SP
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- A copper wire 1mm in diameter and L m long has a resistance of 0.5 ohm. Find the resistance of another copper wire at the same temperature if the second wire is (a) 2mm in diameter and L m long, (b) 3mm in diameter and 0.5L m long. (Complete Solution)arrow_forwardThe radius of a piece of Nichrome wire is 0.306 mm. (Assume the wire's temperature is 20°C.) (a) Calculate the resistance per unit length of this wire. SOLUTION Conceptualize This table shows that Nichrome has a resistivity two orders of magnitude larger than the best conductors in the table. Therefore, we expect it to have some special practical applications that the best conductors may not have. Categorize We model the wire as a ---Select--- 0 so that a simple geometric analysis can be applied to find the resistance. Analyze Use this equation and the resistivity of Nichrome to find the resistance per unit length (in N/m): %3D Ω/m %3D A (b) If a potential difference of 10 is maintained across a 1.0 m length of the Nichrome wire, what is the current in the wire? SOLUTION Analyze Use this equation to find the current (in A): Δν I = A %3D Finalize Because of its high resistivity and resistance to oxidation, Nichrome is often used for heating elements in toasters, irons, and electric…arrow_forwardA heating element is made by maintaining a potential difference of 75.0 V across the length of a Nichrome wire that has a 2.60 * 10-6 m2 cross section. Nichrome has a resistivity of 5.00 * 10-7 ohmm. (a) If the element dissipates 5000 W, what is its length? (b) If 100 V is used to obtain the same dissipation rate, what should the length be?arrow_forward
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