GKFix MCQ Question

What is the relationship between resistance and temperature for metals?

• A. R₂ = R₁ [1 + α(T₂ – T₁)]
• B. R₂ = R₁ [1 – α(T₂ – T₁)]
• C. R₂ = R₁ α T
• D. R = V / I