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← ScienceWhich risk increases when a power supply's output capacitance degrades?
A)Reduced electromagnetic interference (EMI)
B)Increased voltage ripple at output✓
C)Improved transient load response
D)Decreased power supply efficiency
💡 Explanation
Increased voltage ripple occurs because capacitance normally smooths the output. If the capacitance decreases, the smoothing effect lessens; the charge storage mechanism becomes impaired; therefore the voltage ripple increases, rather than EMI decreasing or load response increasing.
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