Cells or batteries provide the flow of charges. The switch establishes a conducting link between the cell and the bulb, controlling the current.
What provides the flow of charges in a torch to make the bulb glow, and what role does the switch play?
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In a torch, the flow of charges is provided by a battery or cell. The battery creates a potential difference, or voltage, establishing an electric field that drives the flow of electrons through the circuit. When the switch is turned on, it completes the circuit, allowing the current to flow from the battery through the conducting wires and the bulb, causing it to glow. The switch serves as a control mechanism, breaking or completing the circuit. Turning the switch off interrupts the flow of current, deactivating the circuit and extinguishing the bulb.