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Whatare permanentmagnet and electromagnent ? Givetwo uses of each . |
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Answer» Solution :Magnets havinga constantmagnetic fieldaroundthem (e.g., a barmagnet ) arecalled permanentmagnets . Permanentmagnets are used in electric generators,SPEAKERS,refrigerator door etc. Materialsbehavingas magnetn only WHENA CURRENTIS passed through a COIL would around thematerial are called electromagnet . Electromagnets are usedin electricbell ,TRANSFORMER , electriccarnes etc. |
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