Temperature Coefficient of Resistivity | Physics Lab

Temperature Coefficient of Resistivity

Interactive simulation for silver wire resistance change with temperature

27.5 °C
2.1 Ω
100 °C
2.7 Ω

Calculation Results

Temperature Difference (ΔT): 72.5 °C
Resistance Difference (ΔR): 0.6 Ω
Temperature Coefficient (α): 0.0039 °C⁻¹

Physics Explanation

The temperature coefficient of resistivity (α) describes how a material's resistance changes with temperature. For metals like silver, resistance typically increases with temperature.

α = (R₂ - R₁) / (R₁ × (T₂ - T₁))

Where:

  • R₁ = Resistance at temperature T₁ (27.5°C in default setup)
  • R₂ = Resistance at temperature T₂ (100°C in default setup)
  • T₁ = Initial temperature
  • T₂ = Final temperature

For silver, the temperature coefficient is positive (≈0.0039°C⁻¹), indicating its resistance increases with temperature. This is characteristic of metallic conductors.

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