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Question 53 A 250 ft long span separates a dc power supply from a lamp which draws 25 A of current. If 14 AWG wire is used (note that two wires are needed for a total of 500 ft), calculate the amount of power wasted in the wire. TABLE 2.4 Some Common Wire Gauges and the Resistance of (Soft) Solid Copper Wire* Conductor Size (AWG) 28 24 22 18 14 12 6 4 2 Cross-Sectional Area (mm²) 0.0804 0.205 0.324 0.823 2.08 3.31 13.3 21.1 33.6 Ohms per 1000 ft at 20°C 65.3 25.7 16.2 6.39 2.52 1.59 0.3952 0.2485 0.1563 * C. B. Rawlins et al., Standard Handbook for Electrical Engineering, 13th ed., D. G. Fink and H. W. Beaty, eds. New York: McGraw-Hill, 1993, p. 4-47.

Question 53 A 250 ft long span separates a dc power supply from a lamp which draws 25 A of current. If 14 AWG wire is used (note that two wires are needed for a total of 500 ft), calculate the amount of power wasted in the wire. TABLE 2.4 Some Common Wire Gauges and the Resistance of (Soft) Solid Copper Wire* Conductor Size (AWG) 28 24 22 18 14 12 6 4 2 Cross-Sectional Area (mm²) 0.0804 0.205 0.324 0.823 2.08 3.31 13.3 21.1 33.6 Ohms per 1000 ft at 20°C 65.3 25.7 16.2 6.39 2.52 1.59 0.3952 0.2485 0.1563 * C. B. Rawlins et al., Standard Handbook for Electrical Engineering, 13th ed., D. G. Fink and H. W. Beaty, eds. New York: McGraw-Hill, 1993, p. 4-47.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Question 53 A 250 ft long span separates a dc power supply from a lamp which draws 25 A of current. If 14 AWG wire is used (note that two wires are needed for a total of 500 ft), calculate the amount of power wasted in the wire. TABLE 2.4 Some Common Wire Gauges and the Resistance of (Soft) Solid Copper Wire* Conductor Size (AWG) 28 24 22 18 14 12 6 4 2 Cross-Sectional Area (mm²) 0.0804 0.205 0.324 0.823 2.08 3.31 13.3 21.1 33.6 Ohms per 1000 ft at 20°C 65.3 25.7 16.2 6.39 2.52 1.59 0.3952 0.2485 0.1563 * C. B. Rawlins et al., Standard Handbook for Electrical Engineering, 13th ed., D. G. Fink and H. W. Beaty, eds. New York: McGraw-Hill, 1993, p. 4-47.
Transcribed Image Text:Question 53 A 250 ft long span separates a dc power supply from a lamp which draws 25 A of current. If 14 AWG wire is used (note that two wires are needed for a total of 500 ft), calculate the amount of power wasted in the wire. TABLE 2.4 Some Common Wire Gauges and the Resistance of (Soft) Solid Copper Wire* Conductor Size (AWG) 28 24 22 18 14 12 6 4 2 Cross-Sectional Area (mm²) 0.0804 0.205 0.324 0.823 2.08 3.31 13.3 21.1 33.6 Ohms per 1000 ft at 20°C 65.3 25.7 16.2 6.39 2.52 1.59 0.3952 0.2485 0.1563 * C. B. Rawlins et al., Standard Handbook for Electrical Engineering, 13th ed., D. G. Fink and H. W. Beaty, eds. New York: McGraw-Hill, 1993, p. 4-47.
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