Making lights using batteries is a quick and easy job. This is a great way to make a handy flashlight, or simply make an emergency light during a power outage. Connecting the battery and lamp correctly creates a circuit that powers the lamp. The electrons flowing from the negative pole of the battery, through the lamp, then back to the positive pole of the battery will keep the lamp on.
Step
Method 1 of 2: Using a Standard Bulb
Step 1. Gather equipment
You can use a light bulb or small fixed lamp for this. You'll also need electrical tape, but if you don't have one, any type is also useful.
- D. battery
- Wrapped wire (2 threads of 7 cm each)
- Bulb
- Electrical tape
- Scissors
Step 2. Peel the wire
Using scissors, peel off 1 cm of the wire wrap from each end of the wire. Do this on both wires. Be careful not to cut the wire.
Step 3. Connect the wire and battery
Glue one end of the wire to the negative pole of battery D.
Step 4. Connect the bulbs
After connecting the wires to the battery, take the same wire and touch the other end to the bulb. Glue all these components.
Step 5. Connect the other end
Take the second wire (with the chipped end) and connect it to the other pole of the battery, which is the positive pole. When you touch the wire to the surface of the battery, the bulb will light up. As electrons flow from the negative pole of the battery, through the bulb, and back to the positive pole, an electrical circuit is formed causing the bulb to light up.
Method 2 of 2: Using LED Diodes
Step 1. Gather equipment
This flashlight is very easy to make and only uses a few materials. Make sure you use AA batteries, as a higher voltage will cause the wire to heat up quickly and harm your flashlight.
- Wrapped wire (2 and 7 cm)
- 2 AA. batteries
- LED Diode
- Electrical tape
- Scissors
- Paper
Step 2. Glue the two batteries together
Arrange the two AA batteries so that the positive pole of one battery is connected to the negative pole of the other. Using electrical tape, connect the two batteries. Make sure the connections are strong so you don't have to press the battery by hand to create an electric charge.
Step 3. Peel off the wire
Using scissors, cut the wrapping from the end of the power cord. This step will reveal the wire. Be careful not to cut it. Do this for both wires.
Step 4. Connect your wires on the LED diode
Using the shorter wire, wrap the wire tightly around one side of the LED diode. Do the same with the longer cable on the other side. Glue all these components.
Step 5. Test your lamp
Using the shorter wire, place the exposed wire on the negative pole of the battery. While holding the wire directly against the battery, place the exposed wire of the longer wire on the positive pole of the battery.
If your LED diode doesn't light up, swap the wires so that the shorter one goes to the positive and the longer one to the negative
Step 6. Thread the ends of the wire
After finding which pole to attach to the shorter wire, thread the ends and glue them to the appropriate battery poles. Flirting the wire will ensure a connection as it will connect the wire to a larger surface area of the battery.
Step 7. Wrap the battery
Cut the paper the same length as the battery. Roll the paper (with the wire fixed inside) to form a small flashlight. Do not glue the longer wire first. Glue the paper on the battery with the light on one end and the longer end of the wire and the exposed battery pole on the other end.
Step 8. Use your finger as a switch
Now, hold the end of the wire against the exposed pole of the battery. This will cause the light to come on. You can hold it in place, or glue it with tape to keep the light on.
