A generating station is producing 1.4 x 106 W of power that is to be sent to a small town located 5.6 km away. Each of the two wires that comprise the transmission line has a resistance per length of 4.5 x 10-2/km. (a) Find the power lost in heating the wires if the power is transmitted at 1600 V. (b) A 100:1 step-up transformer is used to raise the voltage before the power is transmitted. How much power is now lost in heating the wires?

A generating station is producing 1.4 x 106 W of power that is to be sent to a small town located 5.6 km away. Each of the two wires that comprise the transmission line has a resistance per length of 4.5 x 10-2/km. (a) Find the power lost in heating the wires if the power is transmitted at 1600 V. (b) A 100:1 step-up transformer is used to raise the voltage before the power is transmitted. How much power is now lost in heating the wires?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 5STP

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