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Qus: By electromagnetic separation, where are magnetic particles collected in concentration?


A. जब अयस्क के कण अशुद्धियों से भारी होते हैं
B. कन्वेयर बेल्ट पर
C. चुंबकीय रोलर के नीचे
D. चुंबकीय रोलर के ऊपर


Solution
C. Below the magnetic roller



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