Physics · Magnetism
निम्नलिखित में से किसके द्वारा चुंबक का चुंबकीय गुण नष्ट नहीं किया जा सकता है?
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- 2कठोर सतह पर गिराना
- 3गर्म करना
- 4हथौड़े से पीटना
सही उत्तर देखें
उबालना
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