Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is the resistance of a copper bus bar 9.15 meter long and 7.62 cm by 1.27 cm in cross section? Use 1.78 μΩ-cm specific resistance for copper.
A 500-W heating coil designed to operate from 110 V ismade of Nichrome wire 0.500 mm in diameter.(a) Assuming the resistivity of the Nichrome remains constantat its 20.0°C value, find the length of wire used.(b) What If? Now consider the variation of resistivity withtemperature. What power is delivered to the coil of part(a) when it is warmed to 1 200°C?
Assuming a constant temperature coefficient of resistivity, what is the maximum percent decrease in the resistance of a constantan wire starting at 20.0ºC ?
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
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
- A resistor made of nichrome wire is used in an application where its resistance cannot change more than 1.00% from its value at 20.0 °C . Over what temperature range can it be used?arrow_forwardSuppose you wish to fabricate a uniform wire from a mass m of a metal with density ρm and resistivity ρ. If the wire is to have a resistance of R and all the metal is to be used, what must be (a) the length and (b) the diameter of this wire?arrow_forwardConsider a resistor of resistivity 3.89 × 10-5 Ω • m, length 15.21 m, and unknown cross-sectional area. What potential difference, in millivolts, should be applied across the said resistor so the current density in it is 36.69 A/m2?arrow_forward
- The temperature coefficient of platinum is 3.9×10-3/C°. If a platinum wire has a resistance of R at room temperature (25°C), to what temperature (in °F) must it be heated in order to double its resistance to 2R?arrow_forwardResistors are commonly rated at 18W,14W,12W ,1 W and 2 W for use in electrical circuits. If a current of1 = 2.00 A is accidentally passed through a R=1.00 resistor rated at 1 W, what would be the most probable outcome? Is there anything that can be done to prevent such an accident?arrow_forwardIf the resistance of pure iron is 0.10 Ω at 20oC and the temperature coefficient of ironis 5.0 x 10-3 oC-1, calculate i)the resistance of pure iron at 80 oC. ii)power consumed in resistor if the current flow through it is 13 A.arrow_forward
- Calculate the effective resistance (in kΩ) of a pocket calculator that has a 2.15 V battery and through which 0.195 mA flows.arrow_forwardA resistor made of Nichrome wire is used in an application where its resistance cannot change more than 1.00% from its value at 20.0oC . Over what temperature range can it be used?arrow_forwardA certain material is in a room at 25°C. If the absolute temperature (K) of the material is tripled, its resistance doubles. (Water freezes at 273 K.) What is the value for α, the temperature coefficient of resistivity?arrow_forward
- What is the resistance of a NichromeTM wire at 0.0 ∘C∘C if its resistance is 105.60 ΩΩ at 12.1 ∘C∘C? The temperature coefficient of resistivity for NichromeTM is 0.00040 (∘C)−1(∘C)−1 . Enter your answer in ohms to four significant figures.arrow_forwardA cylindrical resistor is to be constructed so that it offers the same resistance whether the current is in radial or axial direction. What should be the length, in millimeters, if the inner and outer diameters were specified to be 19.88 centimeters and 9.10 centimeters, respectivelyarrow_forwardTwo wires have the same resistance and radius. If the wires are made of silver and iron with resistivities respectively of 1.59 ✕ 10−8 Ω · m and 10.0 ✕ 10−8 Ω · m, determine the ratio of their lengths. LAg LFe =arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you