Question

Analyze the flow of current in the torch. Explain the conditions needed for a bulb to glow in a torch?

Answer 1

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When a light bulb connects to an electrical power supply, an electrical current flows from one metal contact to the other. As the current travels through the wires and the filament, the filament heats up to the point where it begins to emit photons, which are small packets of visible light.

Answer 2

Answer:

when a light bulb connected to an electrical power supply and electrical current flow from one metal content to the other as the current travel through the wire and the filament the filament heat up to the point where it being to protons which are smaller package of visible light.