How to make an electrical circuit 4
@ProfeGustavoTecnologia How to make an electrical circuit with an LED, two batteries, wires, and a switch.
In this video, you'll learn step-by-step how to build an electrical circuit using an LED, two batteries, wires, and a switch. The video begins by introducing the 5-millimeter transparent LED that emits white light. I explain that it has two metal legs, the longer one connecting to the positive pole and the shorter one to the negative pole. It also mentions that the LED requires between 3 and 3.6 volts to function properly.
Then, I introduce the batteries as the power source for the LED, highlighting that AAA, AA, C, and D batteries have a voltage of 1.5 volts each. I explain how to connect the batteries in series to add the voltage, thus achieving the 3 volts needed to light the LED.
The video shows how to connect the wires to the batteries and the LED, ensuring the connections are tight and insulated. It also teaches how a switch works, which consists of two metal connectors joined by a small plate that allows electricity to flow when activated.
It explains how to cut the circuit wire and connect it to the switch, and shows the correct way to connect the wires to the metal legs of the LED and the switch.
In addition, push buttons are discussed and how they work compared to switches. It also addresses the importance of using resistors in cases where more voltage is supplied to the LED, such as when connecting it to a 9-volt battery or a USB source. It explains that resistors act as current limiters to protect the LED.
The video shows a resistor color chart and provides information on the appropriate resistor value for different voltages.
In summary, this video provides a detailed guide to creating a simple electrical circuit with an LED, two batteries, wires, and a switch. It also explains basic concepts about voltage, resistors, and the importance of protecting the LED to prevent damage.