कौन-सी व्यवस्था फैरी चुम्बकत्व को प्रदर्शित करती है?
(A) \( \uparrow \uparrow \uparrow \uparrow ...
कौन-सी व्यवस्था फैरी चुम्बकत्व को प्रदर्शित करती है?
(A) \( \uparrow \uparrow \uparrow \uparrow \uparrow \)
(B) \( \uparrow \downarrow \uparrow \downarrow \)
(C) \( \uparrow \uparrow \uparrow \downarrow \downarrow \)
(D) इनमें से कोई नहीं
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