Concept explainers
The diameter of the tungsten wire.
Answer to Problem 15P
Yes, a
Explanation of Solution
Given info:
Diameter of copper wire,
Formula used:
It is known that resistance:
Where,
Calculation:
Formula of resistivity,
Resistance of the wires is equal. So,
Now, Replace the formula above for the expressions for resistivity,
Now, divide both sides by
Use that the cross-sectional area of a wire is
Now, solve the diameter of the tungsten wire by substituting given values in the formula:
Conclusion:
They can, if the diameter of the tungsten wire is
Chapter 18 Solutions
Physics: Principles with Applications
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