Bulb example sentences

The electric heating is also used to produce light, as in an electric bulb.A strong metal with high melting point such as tungsten (melting point 3380°C) is used for making bulb filaments.What does a switch do? A switch makes a conducting link between the cell and the bulb.However, if the electric current is too high, it can fuse bulbs, damage appliances, etc.Note that the electric current flows in the circuit from the positive terminal of the cell to the negative terminal of the cell through the bulb and ammeter., you might have seen the electrician spending lot of time in trouble-locating and replacing the 'dead' bulb – each has to be tested to find which has fused or gone.It may have happened in Activity 1 What can be the reason? Do you remember why the bulb glows when the electric current passes through it? Due to the heating effect of current, the filament of the bulb gets heated to a high temperature and it starts glowing.When the liquid does not allow the electric current to pass, the circuit of the tester is not complete and the bulb does not glow.The current flows in the circuit and the bulb glows.The bulbs are usually filled with chemically inactive nitrogen and argon gases to prolong the life of filament.It is used as an abrasive for sharpening hard tools, in making dies and in the manufacture of tungsten filaments for electric light bulbs.Figureure 1 1 shows the schematic diagram of a typical electric circuit comprising a cell, an electric bulb, an ammeter and a plug key.For instance, scientific research has discovered a technology that makes it possible to produce an energy efficient light bulb that lasts at least twenty times as long as a standard bulb.LED light sources consume less electricity and have longer lifetime than light bulbs and fluorescent tubes.In some situations even though the liquid is conducting, the bulb may not glow.