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Which risk increases when a switched-mode power supply (SMPS) capacitance degrades?

A)Increased electromagnetic interference (EMI)
B)Improved transient response time
C)Decreased output voltage ripple
D)Enhanced power factor correction

💡 Explanation

Increased EMI occurs when capacitance degrades due to less effective filtering via capacitive reactance impacting impedance. Increased EMI is a result of higher ripple current because the capacitance is insufficient, rather than improving performance characteristic.

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