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← ScienceWhich risk increases when a transformer's operating frequency decreases?
A)Core saturation and overheating✓
B)Reduced eddy current losses
C)Decreased inductive reactance
D)Increased voltage transformation ratio
💡 Explanation
Core saturation and overheating risk increases because the magnetic flux density must increase to maintain the same voltage, driving the core into saturation via magnetic hysteresis; therefore, saturation occurs rather than efficient operation due to decreased frequency.
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