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← ScienceWhich consequence results when ferromagnetic transformers experience excessive magnetostriction?
A)Increased winding insulation breakdown risk
B)Elevated transformer oil oxidation rate
C)Reduced core saturation current limits
D)Heightened vibrational acoustic noise emission✓
💡 Explanation
Increased magnetostriction strains the core; the resulting strain causes increased vibrational acoustic noise emission because magnetostriction changes the material dimensions. Therefore, noise is the outcome rather than insulation breakdown, because that is caused by electrical stress.
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