The filament of electric bulb is made up of :
A). Copper
B). Nichrome
C). Lead
D). Tungsten
Tungsten
The filament of an electric bulb is made of tungsten because it has some amazing properties including the highest melting point (3422oC), lowest vapor pressure, and greatest tensile strength out of all the metals.
1. Which of the following is used for regulated electric supply ?
2. The motion of a freely falling body is an example of ________ motion.
3. Electron microscope was invented by
4. Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum?
5. Siphon will fail to work if
6. What does the slope of a velocity time graph represent?
8. Pipelines in cold countries often burst in winter because