Air is completely removed from an electric bulb to create a vacuum or fill it with an inert gas, which prevents the tungsten filament from reacting with oxygen. This helps to prolong the life of the bulb.
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The electrical energy in the tube is almost completely converted into light energy. Fluorescent tubes are preferred over electric bulbs because they are more efficient at converting electrical energy into visible light, reducing energy wastage and providing brighter illumination.
The correct answer is that nichrome wires are used as heating elements due to their high specific resistance and the fact that they do not form oxide when red hot. These properties make nichrome effective at converting electrical energy into ...
Approximately 30-40% of the energy consumed by a tube light is converted into visible light. The rest of the energy is lost as heat due to the inefficiencies in the lighting process.
To stay safe during an uneven lightning strike while in a car, close the windows and remain inside. A car acts as a Faraday cage, distributing the electric charge around its exterior, protecting occupants from lightning. Do not open windows, ...