A complete electrical circuit is required to make a light bulb light.
When the wires in the circuit are connected to the metal casing and metal tip of the bulb, there is a closed circuit with the bulb. Electricity will be able to flow through the filament, causing the bulb to light up.
Why is it necessary to light a bulb?:
The electric light bulb has been called the most important invention since man-made fire. The light bulb helped to establish social order after sundown, extended the workday well into the night, and allowed us to navigate and travel safely in the dark. Without the light bulb, there would be no nightlife.
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A complete electrical circuit is required to make a light bulb light.
When the wires in the circuit are connected to the metal casing and metal tip of the bulb, there is a closed circuit with the bulb. Electricity will be able to flow through the filament, causing the bulb to light up.
Why is it necessary to light a bulb?:
The electric light bulb has been called the most important invention since man-made fire. The light bulb helped to establish social order after sundown, extended the workday well into the night, and allowed us to navigate and travel safely in the dark. Without the light bulb, there would be no nightlife.