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← ScienceWhich mechanism causes the decrease in back EMF generated when a transformer core reaches saturation?
A)Increased magnetic domain alignment
B)Limited magnetic flux density✓
C)Enhanced inductive reactance coupling
D)Reduced core hysteresis losses
💡 Explanation
The decrease results from core saturation because the **magnetic flux density** in the core is limited by its material properties; therefore, further increase of current does not yield a proportional increase in magnetic field, rather than inducing higher back EMF.
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