GKFix MCQ Question

If the inner coil has N₁ turns, what is the total flux linkage?

• A. N₁Φ₁ = N₁B₂πr₂²
• B. N₁Φ₁ = N₁B₂πr₁²
• C. N₁Φ₁ = N₁I₂/R
• D. N₁Φ₁ = N₁V