Fluorescent Lamp Characteristics Quiz

The objective of the experiment is to study the connection of fluorescent lamp, measure the striking and extinguishing voltages, and measure the power consumption of the fluorescent lamp at different voltages.

A fluorescent lamp is a low pressure mercury discharge lamp with internal surface coated with a suitable fluorescent material.

When subjected to electromagnetic radiations of a particular wavelength produced by discharge through the mercury vapor, the fluorescent material gets excited and gives out radiation falling under the visible spectrum, increasing the lamp's efficiency.

<p>The inert gas like argon or krypton facilitates starting and contains a small quantity of mercury under low pressure.</p> Signup and view all the answers

<p>When the power switch is on, full supply voltage appears across the starter electrodes, causing discharge in the argon gas and heating of the electrodes. This leads to the bimetallic strip bending and closing contact of the starter, connecting the choke, filament, and starter in series with the supply, allowing current to flow through the filament and heat them.</p> Signup and view all the answers