Mutual Inductance of Coaxial Loops
Two circular wire loops, with radii r₁ and r₂, are positioned coaxially and parallel to each other. The distance d separating the loops is much larger than either radius. Which of the following expressions correctly represents the mutual inductance M between the loops?
A
(μ₀πr₁r₂)/(2d)
B
(μ₀π(r₁+r₂)²)/(2d³)
C
(μ₀πr₁²r₂²)/(2d³)
D
(μ₀πr₁²r₂²)/(2d²)
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