Multiple choice general knowledge

The purpose of choke in tube light is ?

  1. To decrease the current

  2. To increase the current

  3. To decrease the voltage momentarily

  4. To increase the voltage momentarily
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A choke is an inductor that stores energy in its magnetic field. When current flows through it and then suddenly drops, the choke releases this stored energy, causing a momentary voltage spike. This high voltage helps ionize the gas in the tube light to start the conduction.

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