Describe the structure of torch and explain its working.
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an electric torch has one or more dry cells inside it which act as the source these cells are connected through a switch to a small bulb when the switch is used to the on position the circuit is completely and the bulb glows when the switch is pushed to the opposition's please circuit is incomplete or broken now the currents cannot flows through the circuit and the light goes up
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it is consist of a bulb ,electric cells, a switch , a reflector and a cylindrical shape casing bulb
the bulb emits light when electric current flows through its filament .
Switch: the switch is used to complete and break the circuit inside the torch . In simple words ,it is used to turn the on and off
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