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The magnetic field of a magnetized iron bar when strongly heated

A. Becomes weaker

B. Becomes stronger

C. Reverses in direction

D. is unchanged

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  1. An alloy of 22 percent iron and 78 per cent nickel.
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  23. The uncharged particles which have no effect on its atomic charge.
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  26. Which of the following has the least number of valence electrons?
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  28. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
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