A) 50
B) 0.5
C) 10
D) None of the above
Correct Answer: B
Solution :
Option [b] is correct. Explanation: Neodymium permanent magnets lose their magnetism 5% every 100 years. So, in the truest sense. Neodymium magnets may be considered as a permanent magnet.You need to login to perform this action.
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