- Fluorescent tubes need a high voltage to start and current limitation to run. - The choke coil (ballast) provides the initial high voltage pulse. - The choke coil acts as an impedance in the AC circuit. - This impedance limits the current flowing through the tube during operation.
Fluorescent tubes are fitted with a choke. The choke coils
Asked in UPPCS Prelims 2000 · Topic: Electric Current (Electrical Power and Energy, Joule heating effect)
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