नर्म लोहे के एक टुकड़े के शैथिल्य लूप का क्षेत्रफल, कार्बन-स्टील के टुकड़े के शैथिल्य लूप के क्ष...

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नर्म लोहे के एक टुकड़े के शैथिल्य लूप का क्षेत्रफल, कार्बन-स्टील के टुकड़े के शैथिल्य लूप के क्षेत्रफल से कम होता है। यदि पदार्थ को बार-बार चुंबकन चक्र से गुजारा जाए तो कौन सा टुकड़ा अधिक ऊष्मा ऊर्जा का क्षय करेगा?
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