The material used in electrical fuses, an alloy of tin and lead, should have high specific resistance and a low melting point. This combination ensures that the fuse wire heats up quickly and melts when excessive current flows, thereby breaking ...
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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.
The three basic colors are blue, red, and green. These colors are primary in the additive color model used for light. They combine in various ways to produce a wide spectrum of colors, including white light when combined in equal ...
The minimum height of a plane mirror to see the full image of a person should be equal to half the height of the person. Placing the mirror at this height ensures that the entire body from head to toe ...