Working of an Electric Bulb Video Lecture | Science Class 7

how does a lightbulb work the law of
conservation of energy states that
energy can neither be created nor
destroyed it simply changes from one
form to another a lightbulb is a simple
apparatus that converts electrical
energy into light energy a birth is made
up of a positive and a negative terminal
embedded inside the glass casing with a
tungsten filament that joins the two
terminals when electricity is supplied
to the terminals the flow of electrons
heats up the thin filament in between to
the point that it begins to bloom this
process happens very quickly the air
inside the glass is actually a small
amount of inert gas that helps prevent
the filament from becoming too hot and
breaking when the lightbulb has fused it
means that the thin coil inside has
locked and therefore electricity cannot
flow completely through the circuit
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can you research what is tungsten and
what makes it a good material to be used
in light bulbs