Explain the working of a torch with the help of a small activity
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Batteries generate electricity that flows to the bulb of a torch as soon as it is switched on. As a result the bulb lights up. The bulb of a torch is more or less similar to an electric bulb. The only difference is that it light up with a low current of a few volts. The batteries supply this current. As soon as the torch is switched on, the chemical present inside the batteries produces an electric current. These batteries are connected to the bulb with the help of a switch. A curved mirror is situated behind the bulb which reflects the light of the bulb in the form of a beam.
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