Capacitor — CompTIA A+ Core 1 (220-1101) Practice Questions

A capacitor is an electronic component that stores and releases electrical energy, used extensively on motherboards and power supplies to filter voltage fluctuations and provide short bursts of power. Swollen, leaking, or failed capacitors are a common cause of motherboard instability, random reboots, and POST failures. The 220-1101 exam covers capacitors in the context of identifying physical damage on motherboards and understanding why a board with visibly bulging capacitors should be replaced rather than repaired.

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