Physics · Magnetism
उच्च चुंबकीय पारगम्यता और कम धारणशीलता के कारण विद्युत चुंबकीय (electromagnet) के कोर के रूप में आमतौर पर किस धातु का उपयोग किया जाता है?
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नरम लोहा (Soft iron)
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