🔍
Request Answer
What is the principle of operation of tube light
0 like 0 dislike

Please log in or register to answer this question.

1 Answer

A fluorescent lamp is a glass tube containing some mercury vapor, with a phosphorescent coating on the interior surface of the tube. The mercury vapor is made to glow by using a high voltage across its electrodes that sets off an electric arc discharge in the tube. The discharge can also be described as conducting plasma

The resulting flow of current through the mercury vapor is stable and well-controlled by external ballast, or loading device, which consists of a high-inductance choke-coil that is connected in series with the tube. The continuous discharge glow is invisible to the human eye but it causes the phosphorescent coating on the interior surface of the tube to emit visible light
0 like 0 dislike
Next Question ⇨⇦ Previous Question

Related questions

How the tube light circuit is connected, and how does it work?

Show More
0 like 0 dislike
0 answers

Random Images

What is the principle of DC motor?
Last Answer : The action of DC motor is based on the principle that when a current-carrying conductor is placed in a magnetic field, it experiences a mechanical force whose direction is given by Fleming’s Left-Hand Rule and whose magnitude is given by F=BIL Newton ...

Show More
0 like 0 dislike
1 answer

Random Images

What is the principle of motor?
Last Answer : Whenever a recent carrying performer is placed in a compelling field, it manufactures turning or twisting movement known as torque....

Show More
0 like 0 dislike
1 answer

Random Images

What will happen if we give 220 Volt DC supply to a bulb or tube light?
Last Answer : Bulbs (devices) for AC are designed to operate such that it offers high impedance to AC supply. Normally they have low resistance. When DC supply is applied, due to low resistance, the current through the lamp would be so high that it may damage the bulb element...

Show More
0 like 0 dislike
1 answer

Random Images

What is the permissible rise of temperature in a well-designed generator?
Last Answer : 27 degree C above the surrounding air...

Show More
0 like 0 dislike
1 answer

Random Images
...