17 Nov 2021
Problem 81a
Page 623
Section: General Problems
Chapter 21: Electromagnetic Induction and Faraday’s Law
Textbook ExpertVerified Tutor
17 Nov 2021
Given information
It is given that
A pair of power transmission lines each have a resistance ,
It carry a current ,
The distance over which this current is carried is given by
Input Voltage is given by
Step-by-step explanation
Step 1.
The pair of transmission lines ( 2 lines) each carrying resistance of can be thought of as 2 Resistors connected across an input voltage of in an electrical circuit.
Hence there will be voltage drop across the 2 resistors and the net voltage received on the other end will be less than the supply voltage or input voltage as mentioned in the question.
Converting the units:
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