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Kahsi
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Hi!
I just have one question, How does a photocell work?
I just have one question, How does a photocell work?
Kahsi said:Hi!
I just have one question, How does a photocell work?
Mk said:If photocells lose electrons in the process of use, they get old from too much light knocking off electrons. Correct? Because photcells lose more and more electrons the longer they are used, they get more postively charged he longer they're in use? Do photocells last long enough or have lasted longe enough to experience these things?
marlon said:That is a good question, though i don't really know the exact answer. Clearly , you will need some kind of battery to 'refresh' the photo-cell.
Perhaps somebody else will know more on this...Again good question though
regards
marlon
I think this is a question for ZapperZ
Stefan Udrea said:Ok, so , does this mean that a photo-cell reaches saturation ( at one point, the rise of the power of the bulb-light which lights the cell does not rise the intensity of the current produced by the photo-cell anymore ) because it is not perfectly grounded ?
I worked with a device which was supposed to measure the power of various laser diodes using a photo-cell.It was very unpleasant that there was a maximum power that the device was able to measure.
A photocell, also known as a photoresistor, contains a semiconductor material that allows electrons to flow when exposed to light. When light hits the photocell, the energy from the light causes the electrons in the material to become excited and move, creating an electrical current.
A photocell can detect a wide range of light, including visible light, infrared light, and ultraviolet light. However, the sensitivity of the photocell may vary depending on the type of light it is exposed to.
When light hits a photocell, it creates an electrical current that can be used to activate a switch or control the flow of electricity in a circuit. This is because the resistance of the photocell decreases when exposed to light, allowing more current to flow through it.
Yes, a photocell can be used in both light and dark environments. However, it is most commonly used in light sensing applications, as it is designed to detect changes in light levels.
The accuracy of a photocell in detecting light can vary depending on factors such as the type of light, the sensitivity of the photocell, and the circuit it is used in. However, photocells are generally considered to be reliable and accurate in detecting changes in light levels.