Solution Found!
Solved: A tightly coiled spring having 75 coils, each 3.50
Chapter 25, Problem 20E(choose chapter or problem)
Problem 20E
A tightly coiled spring having 75 coils, each 3.50 em in diameter, is made of insulated metal wire 3.25 mm in diameter. An ohmmeter connected across its opposite ends reads 1.74 Ω.what is the resistivity of the metal?
Questions & Answers
QUESTION:
Problem 20E
A tightly coiled spring having 75 coils, each 3.50 em in diameter, is made of insulated metal wire 3.25 mm in diameter. An ohmmeter connected across its opposite ends reads 1.74 Ω.what is the resistivity of the metal?
ANSWER:
Solution 20E
Step 1 of 3:
Introduction:
An insulated wire of 3.25mm in diameter is coiled to make a spring of 75 coils and diameter 3.5cm. The resistance across the spring is 1.74 ohms. We need to find the resistivity of the structure.