Earlier Experiments

                        I have finally got some photos to go with some of my earlier experiments.

This was my first experiment when I was testing out my potentiometer on my red LED. I used a 9 Volt battery, a red LED, a 46 ohm resistor, and a potentiometer. Altogether, it was quite easy and worked well. I did this experiment back in December. The potentiometer is used as a switch because it allows you to dim and brighten the lights. You have to use a resistor to catch some of the current because if all the energy goes to the LED it would burn up.

This was another experiment I did back in December, and it was actually easy. I used a 9 Volt battery, potentiometer, two red LEDs, a transistor, a photocell, two resistors, and two jumpers. It acted as a night light because the LEDs were dim with the lights on, but they get brighter when the light goes off because of the photocell. Photocells are used in streetlights, so when it becomes night the photocell uses the stored energy.