An incandescent light bulb produces light through a filament wire that glows when heated by an electric current passing through it. A connection refers to the association between two or more things, such as a bulb connected to wires that are part of an electric circuit providing a complete path for electricity to flow from the terminals of a battery or other power source.

3. An incandescent light bulb, incandescent
lamp or incandescent light globe is an
electric light which produces light with a
filament wire heated to a high
temperature by an electric current
passing through it, until it glows.

6. What
is a
connection?
An association or
relationship between two
or more things is called
connection. Example -:
a bulb connected to
An electric cell . A bulb
connected to two wire.

7. The electric circuit provides a
complete path for electricity
[current to flow] between the two
terminals of electric cell.