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Can you make a photovoltaic cell at home?
Yes and no. There used to be a hobby kit with all the materials (ceramic tube electric furnace, one bare silicon wafer, dopant chemicals, metal plating chemicals, wafer scoring scribe, wire, and chemical trays) and instructions to make 8 small silicon photovoltaic cells. But it has been out of production for more than 25 years. It would be very difficult (but not completely impossible) to replicate something similar to this kit and make your own photovoltaic cells now, but certain materials would probably need to be purchased in prohibitively large quantity for an individual.
What simple machine is used for a sloping surface?
That would be a wedge.
What type of information system would be recognised by digital circuits?
binary system
How many square yards are in 7500 feet?
There are not enough measurements to calculate square yards. It would need to be 7500 by (another measurement) to calculate.
Examples of system and sub system in system analysis and design?
One example of a system and sub system in system analysis and design is an organization (system) with interrelated department (sub system). Another example would be a computer (system) and all of its components (subsystem).
