Engine : Electricity - 343/1386
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| What is the functional purpose component "5" as shown in figure "B" of the illustration? Illustration EL-0081 |
| A) to rapidly strike the arc to fire the tube nearly instantly after the lighting fixture switch is closed |
| B) provide power factor correction |
| C) regulate the current drawn by the fluorescent tube once the arc has been stricken |
| D) initially heat the fluorescent tube filaments at startup and cause the ballast to strike the arc to fire the tube after warm-up |
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Illustration EL-0081
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