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Wire Resistance Calculator
Formula
Calculate the electrical resistance of a wire using R = ρL/A. Enter the material resistivity, wire length, and cross-sectional area to determine resistance in ohms.
Common use cases:
- Electrical wiring design
- Voltage drop calculation
- Cable sizing for installations
Frequently Asked Questions
James Wilson
Licensed Professional Engineer, PE, MS Civil Engineering
James is a Licensed Professional Engineer with a Master's in Civil Engineering and over 12 years of experience in structural design and construction project management. He specializes in building calculations, material estimation, and physics-based engineering tools.
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