How does an electric torch work
Answers
Answered by
27
In most torches, the lamp is either a tungsten filament (incandescent bulb) or a light emitting diode (solid state bulb), also known as an LED. The tungsten filament or LED glows when electricity flows through it, thus producing visible light.thus Electric Torch works,
Answered by
20
A torch bulb is comprised of two terminals and wire. The wire is a spirally coiled filament inside the bulb guarded by two thick conductors at its edges. Whenever the negative and the positive ends of an electronic cell are joined with the two termini of a bulb, current crosses through the filament and it begins gleaming. The termini of the bulb are attached in such a way that they do not encounter one other.
Similar questions