Physics · Electric Circuits
What is the primary function of a ballast (choke) at the exact moment of starting a conventional fluorescent tube light circuit?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To change alternating current into direct current
- 2To keep the filaments continuously heated during operation
- 3To induce a high voltage surge to initiate the arc discharge✓
- 4To step down the main voltage below 50V
Correct answer
To induce a high voltage surge to initiate the arc discharge
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