New York City requires about1010 watts of electrical power, at 115 volts (this is plausible:10 million people averaging 1 kilowatt each). A heavy power ca-ble might be an inch in diameter. Let's calculate what will happenExercise 1.6.if we try to supply the power through a cable 1 foot in diametermade of pure copper. Its resistance is 0.05 u2 (5x10-8 ohms)per foot. Calculate (a) the power lost per foot from "I?R losses,"(b) the length of cable over which you will lose all 1010 watts, and(c) how hot the cable will get, if you know the physics involved(0 = 6 x 10-12W/K* cm?). If you have done your computationscorrectly, the result should seem preposterous. What is the solu-tion to this puzzle?

Power delivered = 1010watt Output voltage= 115 V. Current output at the end of cable will be…

Exercise 1.6. New York City requires about 1010 watts of electrical power, at !15 volts (this is plausible: 10 million people averaging 1 kilowatt each). A heavy power ca- ble might be an inch in diameter. Let's calculate what will happen if we try to supply the power through a cable 1 foot in diameter made of pure copper. Its resistance is 0.05 us (5×10-8 ohms) per foot. Calculate (a) the power lost per foot from "/?R losses," (b) the length of cable over which you will lose all 1010 watts, and (c) how hot the cable will get, if you know the physics involved (0 = 6 x 10-12W/K* cm?). If you have done your computations correctly, the result should seem preposterous. What is the solu- tion to this puzzle?

Exercise 1.6. New York City requires about 1010 watts of electrical power, at !15 volts (this is plausible: 10 million people averaging 1 kilowatt each). A heavy power ca- ble might be an inch in diameter. Let's calculate what will happen if we try to supply the power through a cable 1 foot in diameter made of pure copper. Its resistance is 0.05 us (5×10-8 ohms) per foot. Calculate (a) the power lost per foot from "/?R losses," (b) the length of cable over which you will lose all 1010 watts, and (c) how hot the cable will get, if you know the physics involved (0 = 6 x 10-12W/K* cm?). If you have done your computations correctly, the result should seem preposterous. What is the solu- tion to this puzzle?

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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