Sollar Cell Expt

The solar cell is considered as being an electrical device that basically converts the energy of light straight into electricity by so called photovoltaic effect, the solar cell is also called a photovoltaic cell.  It’s considered as being a form of photoelectric cell but for example when current, voltage, or resistance varies when the light is incident upon it but when exposed to light, it can “generate and support an electric current without being attached to any external voltage source, but do not require an external load for power consumption.”

A solar cell “ is a solid state electronic device that takes in light energy and converts it directly into electrical energy, is a sort of light bulb that is acting in reverse.”

Solar cells have made the research that we make nowadays possible. The regular blue or silver cell has a base of the element silicon. The moving electrons that bounce into the electrical circuit, are also known as electrical current, have the power to power electronic devices, especially the devices that have low power requirements.

During our experiment, we looked at solar panels and their relationship to different intensities and colors of light.

What we used:

-NXT CPU

-a solar panel

-a flash light

-3 distinct color filters

What we had to do:

We had to determine the relationship of distance to the intensity of light.  In order for us to figure that out we had to use different distances between the soar panel and the flashlight. The first time we applied this we didn’t use any filter. Then we started using the different colors of filters.  After running different experiments we concluded that the closer the panel is to the flashlight, the more energy it will receive.

Sources

http://en.wikipedia.org/wiki/Solar_cell