engineering recuitment PGCIL Junior Technician Trainee (Electrician) Mock Test 2023 Electrician and Wireman Light and Illumination Sources of Light
What is the purpose of the choke after the fluorescent tube is just lighted to its full brightness?
1
For supplying a higher operating current
2
Smoothing the sinusoidal operating current
3
Limiting the current flowing through the fluorescent tube filaments
4
Heating the filaments continuously during operation