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 44SP
To determine
The resistance of a germanium wire at 20 °Chaving a length of
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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 nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in resistance when heated separately. (ρρAI=2.82 x 10-8ohm.m ; ααAI = 3.9 x 10-3/°C; ρρhichrome = 2.50 x 10-6 m ; ααnichrome =0.40 x 10-3 / °C.) The ratio of the temperature change of the nichrome wire to thetemperature change of the aluminum wire is Select one: a. 10 b. 9.75 c. 0.1 d. 1arrow_forwardA silver wire has a length of 33.0 m and a resistance of 2.60 Q at 20.0°C. Assuming a circular cross-section, what is the wire's diame resistivity of silver at 20.0°C is 1.59 100 m. mm Need Help? Read Itarrow_forwardA common flashlight bulb is rated at 0.24 A and 2.2 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 0.92 02, what is the temperature of the filament when the bulb is on? The temperature coefficient of resistivity is 5.3 × 10-3K-1 for the filament material. Number i 2530 Units °℃arrow_forward
- A 62.4 cm length of the material has a circular cross-section of diameter 12.1 mm. When a potential difference of 87 V is placed across the length of the material, a current of 12.5 mA flows. Calculate the resistivity of the wire. Give your answer to 2 decimal places.arrow_forwardA platinum wire with resistance 1.0 N at 20 °C is immersed in liquid nitrogen at -195.9 °C. If the temperature response of the platinum wire is linear, determine the expected resistance of the platinum wire at -195.9 °C. [a platinum = 3.92 x 10-3 °C-1] Give your answer in two decimal places in unit 0. Answer:arrow_forwardA certain laboratory experiment requires an aluminum wire of length of 22.0 m and a resistance of 3.50 Q at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 x 10-8 Q · m.) mm Need Help? Read Itarrow_forward
- Problem 1. A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 41.0 Q at 20°C. If its resistance increases to 41.4 Q at 29.0°C, what is the temperature coefficient of resistivity?arrow_forwardostro Imssb1.mutah.edu.jo/mod/ A thermometer made of Platinum has a resistance of 50 2 at 20 C, what is the measured temperature (in units of C) when its resistance is 77 N. Assume the temperature coefficient of resistivity to be a= 3.92x 10 Carrow_forwardA certain laboratory experiment requires an aluminum wire of length of 31.0 m and a resistance of 2.80 at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 x 10-8. m.) mmarrow_forward
- Calculate the ratio of the resistance of 15.0 m of aluminum wire 2.3 mm in diameter, to 30.0 m of copper wire 1.7 mm in diameter. The resistivity of copper is 1.68 x 10–8 N. m and the resistivity of aluminum is 2.65 x 10-8 N · m. Express your answer using two significant figures.arrow_forwardThe specific resistance of platinum at 0oc is 10.3 .cm . how long must a wire of platinum be to have a resistance of 4 at 0oc , if the diameter ( d ) = 0.0274 cm . What will be the resistance of the wire at 100oc if the temperature coefficient ( ∝ ) of platinum is 0.0038 per oC .arrow_forwardWhat temperature should a copper wire (which is originally at 20°C) reach to increase its resistance by 12%? Information: alpha = 0.0068 (C^-1) Help: The final resistance of the copper wire is R = 1.12Ro Write your answer with 2 significant figures.arrow_forward
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