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31 Oct 2021
Given information
It is given that the copper wire is 21-m long, 1.628 mm in diameter and carries a current of 12-A. It is also known that the resistivity of copper is 
Step-by-step explanation
Step 1.
The Ohm’s law tells that the ratio of voltage drop (V) and the current (I) passing through a resistance (R) is ideally constant which is equal to the value of that resistance itself, i.e.,
V=IR
The resistance (R) of a resistor is related with the resistivity of it’s material (ρ), it’s length (l) and the cross-sectional area (A) as,
Where, d is the diameter of the resistor.
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Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922
Solutions
Chapter
Section
- Problem 1
- Problem 2
- Problem 3
- Problem 4
- Problem 5
- Problem 6
- Problem 7a
- Problem 7b
- Problem 8
- Problem 9a
- Problem 9b
- Problem 10
- Problem 11a
- Problem 11b
- Problem 12
- Problem 13
- Problem 14
- Problem 15
- Problem 16
- Problem 17
- Problem 18
- Problem 19a
- Problem 19b
- Problem 19c
- Problem 20
- Problem 21
- Problem 22
- Problem 23
- Problem 24
- Problem 25
- Problem 26a
- Problem 26b
- Problem 26c
- Problem 27
- Problem 28
- Problem 29
- Problem 30a
- Problem 30b
- Problem 31
- Problem 32
- Problem 33a
- Problem 33b
- Problem 33c
- Problem 34a
- Problem 34b
- Problem 35a
- Problem 35b
- Problem 36
- Problem 37
- Problem 38
- Problem 39
- Problem 40a
- Problem 40b
- Problem 41
- Problem 42
- Problem 43
- Problem 44
- Problem 45a
- Problem 45b
- Problem 46
- Problem 47
- Problem 48
- Problem 49a
- Problem 49b
- Problem 50
- Problem 51a
- Problem 51b
- Problem 52a
- Problem 52b
- Problem 53a
- Problem 53b
- Problem 54a
- Problem 54b
- Problem 55
- Problem 56a
- Problem 56a
- Problem 56b
- Problem 56c
- Problem 57
- Problem 58
- Problem 59
- Problem 60