Fundamentals of Electric Circuits
6th Edition
ISBN: 9780078028229
Author: Charles K Alexander, Matthew Sadiku
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 2, Problem 1RQ
The reciprocal of resistance is:
(a) voltage
(b) current
(c) conductance
(d) coulombs
Expert Solution & Answer
To determine
Find the appropriate option that suits for reciprocal of resistance from given options.
Answer to Problem 1RQ
The reciprocal of resistance is “(c) conductance”.
Explanation of Solution
Discussion:
Resistance is defined as the capacity of an element to oppose the flow of electric current. It is denoted as R and its unit is ohm
From Ohm’s law, the resistance is stated as the ratio of voltage to current that is
In a short circuit element, the resistance will be around 0 ohms and in an open circuit element, the resistance would be around infinity.
Conductance is defined as the ability of an element to allow the flow of electric current. It is denoted as G and its unit is mho or siemens (S).
Therefore, the resistance is inversely proportional to the conductance that is
Hence, the option c is correct and remaining options a, b and d are incorrect.
Conclusion:
Thus, the reciprocal of resistance is “(c) conductance”.
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Chapter 2 Solutions
Fundamentals of Electric Circuits
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