Reluctance of a coil is given by the relation

1.	Reluctance of a coil is given by the relation
A.	S = <sup>1</sup>‚Äö√Ñ√∂‚àö√ñ‚àö√´<sub>A</sub>
B.	S = <sup>1</sup>‚Äö√Ñ√∂‚àö√ñ‚àö√´<sub>‚âà√≠¬¨‚à´</sub>
C.	S = <sup>a</sup>‚Äö√Ñ√∂‚àö√ñ‚àö√´<sub>‚âà√≠¬¨‚à´A</sub>
D.	S = <sup>1</sup>‚Äö√Ñ√∂‚àö√ñ‚àö√´<sub>‚âà√≠¬¨‚à´A</sub>
Answer» E.

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