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 46SP
To determine
The resistance of Manganin wire at 60 °C if at 20 °C, the resistance is
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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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- The resistance of a carbon resistor at 20°C is 18 Ω. What would be the resistance at 120o C? (The coefficient of variation of resistance with temperature for carbon is -5.10-4/oC)arrow_forwardGold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.15 km long. The density of gold is 19.3 ✕ 103 kg/m3, and its resistivity is 2.44 ✕ 10−8 Ω · m. What is the resistance of such a wire at 20.0°C? ??? MΩarrow_forwardA copper wire has a resistance of 0.500 Ω at 20.0oC ,and an iron wire has a resistance of 0.525 Ω at the same temperature. At what temperature are theirresistances equal?arrow_forward
- What diameter must a copper wire have if its resistance is to be the same as that of an equal length of aluminum wire with diameter 3.1 mm? Take the resistivity of copper and aluminum to be 1.72 x 10-8 Ωm and 2.75 x 10-8 Ωm respectively.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_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
- 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_forwardSuppose at 70°C the resistance of a platinum resistance thermometer is 170 Ω. When placed in aparticular solution, the resistance is 7+100 Ω. What is the temperature of this solution?Temperature Coefficient of resistivity for platinum is 3.93 x 10-3 1/ 0 C.arrow_forwardHow do you determine how much current will be flowing through a 40.0 m length of copper wire with radius 4.0 mm if it is connected to a source supplying 16.0 V? (The resistivity of copper is 1.68 ⋅ 10-8 Ω m.)arrow_forward
- What diameter must a copper wire have if its resistance is to be the same as that of an equal length of aluminum wire with diameter 2.77 mm? Take the resistivity of copper and aluminum to be 1.72 x 10-8 Ωm and 2.75 x 10-8 Ωm respectively.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 20.0 °C . Over what temperature range can it be used?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
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