Resistance vs Resistivity — Difference (with Table)
Resistance vs Resistivity compared side by side — a 6-row comparison table and 4 key points. Class 10 Physics, free and no sign-up.
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TL;DR: Resistance vs Resistivity compared side by side — a 6-row comparison table and 4 key points. Class 10 Physics, free and no sign-up.
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The main difference between Resistance and Resistivity: Resistance is opposition to current flow in a conductor. Resistivity is a material property independent of size.
Resistance vs Resistivity — Comparison Table
| Basis | Resistance | Resistivity |
|---|---|---|
| Definition | Opposition to current in conductor | Material property measure |
| Symbol | R | ρ (rho) |
| SI Unit | Ohm (Ω) | Ohm-meter (Ω m) |
| Dependence | Depends on material, length, area | Independent of length and area |
| Formula | R = V/I (Ohm's law) | ρ = R × A / L |
| Measurement | Using ohmmeter | Calculated from resistance values |
Key Points
- Resistance depends on resistivity and geometry
- Resistivity is intrinsic material property
- Doubling length doubles resistance
- Doubling area halves resistance