Quantum Snark
Resistivity measures how strongly a material opposes current.
✓ TRUE FACT
Resistance depends on geometry and material: (R=\rho L/A). Copper has low resistivity (~1.7×10⁻⁸ Ω·m at 20°C), which is why it’s used in wiring.
🤯 "Resistivity measures how strongly a material opposes current. Some materials just say no."
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