0
When the p and n are joined together they form what is called the "p-n junction." When they are joined some of the electrons from the n side of the junction move to the p side. When certain kinds of light hit the photovoltaic cell, some of the electrons move from the p side to the n side. In both cases the electrons have gained energy and can pass through a circuit--this creates an electrical current.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Who sells electricity to India?
India generates their own energy. They don't buy electricity from any countries!
What is Thermoelectricity?
Thermoelectricity is electricity generated with the thermoelectric effect. Essentially, when you heat one end of a suitable material, the electrons move away from the heat, creating an electric current. It is not terribly efficient, but thermoelectric generators are often used to capture waste heat. It can also refer to electricity produced by a thermoelectric power plant, where heat (usually in the form of steam) from burning some material, usually one of the fossil fuels (coal, oil and natural gas), but also biomass, biogas, or even garbage, generates electricity.
What is the stages of electricity production in a coal fired power station?
The coal is burned to generate heat. The heat is used to boil water which creates steam. The steam is used to turn large turbines. The rotary motion of the turbines generates electricity. The voltage of the electricity produced is 'stepped up' by means of a transformer. The high-voltage is fed to the national grid system for distribution.
What does a photoresistor do?
What does a photoresistor do ?Photoresistors (also often called phototransistorsor CdS photoconductive photocells; use 'photocell' for digikey) are simple resistors that altar resistancedepending on the amount of light place over them.
Which two fuels provide about one half of all the energy used in Canada?
Canada generates a great deal of electricity. It also has oil, natural gas and coal.-------------------------------------------------------------Renewable energy (from the sun, wood, hydroelectricity, wind etc)Fossil fuels (Coal, Gas, Oil, Tar sands etc).
How does a photocell generates electricity?
Photon light excites electrons in photocells to the conduction level, thus generating electricity, the flow of electrons.
Light is converted into electricity in an?
photovoltaic cell, photoelectric cell, photocell
How do you generates electricity from truck dynamos?
4
Changing a magnetic field generates what?
electricity
What type of energy generates?
Static electricity
What are the sources of electricity and how are they produced?
Static , water dams produces and generates electricity
How much a electricity can a generator hold?
None. A generator generates electricity, it does not store it.
What are sources of electricity and how are they produced?
Static , water dams produces and generates electricity
How do waterfalls produce electricity?
Build a turbine at the bottom and the rotation of the turbine generates the electricity.
Solar power generates electricity from what source?
sun
What is the machine called that generates electricity from waves?
turbine
What solar power generates electricity from what source?
sun
