Create a Basic Circuit: LED and Battery Setup Guide

[Inspiron1]

Hello all. I am trying to build a very simple circuit and need some help.

I want to have an LED connected to a battery, and if a wire is unplugged from the circuit then the LED lights up.

Does anyone know how I can make this happen?

 

[Inspiron1]

Here is a picture of a schematic that gets the job done, but it drains the battery.

Ok, see the middle wire? While that middle wire is connected the led will not light up because the current will take the path of least resistance. So I would probably put a resistor in front of the LED.

But if you remove the wire the LED lights up.

So the LED should typically not be lit, but if I unplug a wire then the LED lights up.

That's all I need! But without draining the battery of course!

 

[oswaler]

Hello there,

Creating a basic circuit with an LED and battery is a great way to start learning about electronics. To achieve your desired result, you will need a few components and follow these steps:

1. Gather your materials: You will need an LED, a battery, a resistor (optional), a breadboard, and some jumper wires.

2. Connect the LED to the breadboard: Place the LED on the breadboard with the longer leg (positive) in one row and the shorter leg (negative) in another row.

3. Connect the resistor (optional): If you are using a resistor, connect one end to the same row as the positive leg of the LED and the other end to a different row on the breadboard.

4. Connect the battery to the breadboard: Place the battery on the breadboard with the positive end in the same row as the positive leg of the LED and the negative end in a different row.

5. Connect the jumper wire: Take a jumper wire and connect it from the negative leg of the LED to the negative end of the battery.

6. Test the circuit: If everything is connected correctly, the LED should light up. If it doesn't, try checking your connections and make sure the battery has enough power.

7. Create the switch: To make the LED light up when a wire is unplugged, you can use a jumper wire as a switch. Connect one end of the jumper wire to the positive end of the battery and the other end to the same row as the positive leg of the LED.

8. Test the switch: When the jumper wire is plugged in, the circuit will be complete and the LED will light up. When the wire is unplugged, the circuit will be broken and the LED will turn off.

I hope this guide helps you create your basic circuit with an LED and battery. Remember to always be cautious when working with electricity and have fun experimenting with different components and designs. Good luck!