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← ScienceWhich consequence results when parasitic inductance resonates in a decoupling capacitor?
A)Increased impedance at resonant frequency✓
B)Suppressed high-frequency noise coupling
C)Decreased voltage ripple magnitude
D)Enhanced power supply transient response
💡 Explanation
Increased impedance occurs at resonance frequency because parasitic inductance interacts with capacitance, creating series resonance, therefore impedance peaks, rather than providing decoupling because the capacitor is actually less effective near the resonant frequency.
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