When an iron bar of length 12 cm is magnetized, its length was found t – McqOptions

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1.	When an iron bar of length 12 cm is magnetized, its length was found to have increased. What happens to its mass?
A.	It increases.
B.	It decreases.
C.	It remains the same.
D.	It cannot be explained.
Answer» D. It cannot be explained.

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