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Why is it important that the surface of the solar panel has a large area?
so it can get more sun
How many kilowatts can one solar panel create in one month?
The same as it can generate in a day, or in a year, or in a second. Kilowatt is a unit of power, not a unit of energy.
What is a good reason to buy solar panals?
Well, how about saving the planet? Actually, solar panels are initially expensive, but they are becoming more and more effective in electricity production for the size of the panel. You can generate enough free electricity for your own use, and sometimes sell back to the national grid any excess electricity you produce. Most installations are moveable to a new location should you move house or business address. You can get tax rebates on the cost of the installation. A battery will store the electicity for your use at a later time.
What is your prediction for the number of background radiation counts that your body would receive a day?
The answer depends on where on earth you were. Near the tropics you will receive much more solar radiation (light) that if you were near the poles. Even if you think of ionising radiation the answer will depend on your location. According to the local council, more than 1% of houses in Cornwall (South West England), are subject to radon-based radiation levels of at least 200 Becquerels per cubic metre. This is primarily from granite in the bedrock - underneath the houses. This level is 10 times the average for the country.
Gave you a example of radiation in real life?
The sun gives off radiation. An x-ray machine gives off radiation.
