Скачать или смотреть Electric torch or flashlight | DIY | School project | science project | STEM activity

Learn how to make flashlight and understand how a flashlight works.This science project can easily be done at home with simple materials like LED, switch, battery and paper.

A torch or flashlight is a portable handheld electric light. A typical torch consists of a light source mounted in a reflector, a battery, wires and a switch.

Due to chemical reaction inside the cell, excess electrons are produced on negative end.

When the cicuit is closed with a conductive path, the electrons are able to travel to the positive end. Thus in turn provides power to LED. Inside the LED the electrons recombine with the holes and energy is released in the form of light.

When the switch is in off position, the circuit is not complete and the current doesnot flow through it. Such circuit is called an open circuit. When switch is in On position, the circuit is complete and current flows through it. Such circuit is called closed circuit.

For more details click the following link
https://bee-a-maker.blogspot.com/2019...

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