<Homework 5 Problem 25.14 Part A Calculate the ratio of the resistance of 11.0 m of aluminum wire 1.8 mm in diameter, to 20.0 m of copper wire 1.9 mm in diameter. Express your answer using two significant figures. Request Answer Provide Feedback
Added by John D.
Close
Step 1
The resistance \( R \) of a wire is given by: \[ R = \frac{\rho L}{A} \] where \( \rho \) is the resistivity, \( L \) is the length, and \( A \) is the cross-sectional area. Show more…
Show all steps
Your feedback will help us improve your experience
Darshan Maheshwari and 88 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Calculate the ratio of the resistance of 11.0 mm of aluminum wire 2.5 mm in diameter, to 30.0 mm of copper wire 1.8 mm in diameter. The resistivity of copper is 1.68×10^(-8) Ω⋅m and the resistivity of aluminum is 2.65×10^(-8) Ω⋅m.
Sri K.
Calculate the ratio of the resistance of 11.0 m of aluminum wire 2.3 mm in diameter to 22.0 m of copper wire 1.9 mm in diameter. The resistivity of copper is 1.68×10^-8 Ωm, and the resistivity of aluminum is 2.65×10^-8 Ωm. Express your answer using two significant figures.
Varsha A.
(II) Calculate the ratio of the resistance of 10.0 $\mathrm{m}$ of aluminum wire 2.0 $\mathrm{mm}$ in diameter, to 20.0 $\mathrm{m}$ of copper wire 2.5 $\mathrm{mm}$ in diameter.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD