Question

how does the current changes when the distance between a bright light and as solar cell is varied?

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Answer 1

Explanation:

In order to better understand the way solar panels work, we must understand how different factors affect it. What we focused on in this project is different light filters and light sources being different distances to the light source. Different colors of light have different wavelengths, which is why different amount of voltages were produced with different colors.

Our voltage versus filter color contradicts some of our original opinions about the correlation between the two. What we must know is that different wavelengths have different energy levels, wavelengths that are too short will pass right through a solar cell, but wavelengths that are too long will not have enough energy to ‘excite’ the electrons in the solar cell to produce energy. What we expected was lower wavelengths to produce the most energy because they have the most energy, but the result was the opposite. From our results we determined that the best filter color is between yellow and red, so a wavelength of anywhere between 600 nm to 700 nm. The larger we get, the small the voltage would be produced because the wavelengths are getting to large to power the solar cell. According to our data as well, no color filter is actually less than the yellow color filter which is surprising because we would expect white light to produce the most energy because it is the same as the sun.

Voltage versus distance is pretty self explanatory. The larger the distance between the light source and the solar cell, the smaller amount of energy that will be produced. This is because light spreads out as soon as it leaves the source, but the amount of light does not change. So as the area that the light covers grows larger, the amount of light per a certain area also gets smaller and weaker.

Answer 2

Answer:

The current will increase as the distance decreases and will decrease as the distance increases between the light and the solar cell.

Explanation:

• The power that solar cells will produce will increase when they are brought closer to the light source.
• Light spreads out at all angles as it moves away from its source; the farther you are from the source, the less powerful the light will be.
• A solar cell, also known as a photovoltaic cell, is an electrical device that uses the photovoltaic effect, natural physical and chemical phenomena, to convert light energy directly into electricity.
• A device whose electrical properties, such as current, voltage, or resistance, change when exposed to light is a type of photoelectric cell.
• Photovoltaic modules, also referred to as solar panels informally are frequently constructed electrically from individual sun cell devices.

The current reduces as the distance increases and increases as the distance decreases.

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