What is the purpose of the capacitor within component "5" of the circuit shown in figure "B" of the illustration? EL-0081
Official USCG Answer & Rule Citation
Correct Answer: Option D — prolong the life of the component's contacts
The capacitor in a fluorescent starter or ballast circuit acts as a surge suppressor. By absorbing the inductive kickback generated when the contacts open, it prevents arcing across the switch points. This significantly extends the service life of the contacts, ensuring reliable ignition of the lamp over many operational cycles.
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