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The Journey of Energy Away from the Sun to Your Motor

Solar motors take the energy away from the sunlight to strength appliances like generators and car engines. This transformation regarding solar energy to electric then mechanical energy, the type needed for drives, is all due to something called the photoelectric effect. The photoelectric impact, which won Einstein his Nobel Prize in 1921, express that light by way of some high enough energy, or frequency, can thrust electrons out of their orbits around atoms. This means that light may cause atoms to produce electricity, nevertheless how does that relate to a solar-powered engine?

The Evolution of Light to Electrical Energy

Photovoltaic cells, the blue panels on top of solar-powered devices, are composed generally of silicon, which is some semi-conductor. Essentially, this means that the electrons inside atoms regarding silicon may easily be excited out about silicon atoms and in a form in which we may use them. This form is electricity, also it is produced when soft from the sunlight hits any photovoltaic cell, knocking billions of electrons from their orbits around silicon atoms to some concentrated current regarding electricity.

The Transformation Away from Electricity to Mechanical Energy

this is any design for a simple electromagnetic motor

The electricity produced via the photovoltaic cells about your solar panels remains in the form of DC energy, meaning that it is direct existing, never alternating current. This DC electricity can be used to power electromagnets. Motors powered by solar energy are electric motors, which employ pair semicircular electromagnets to turn an thing, thereby creating mechanical energy. These motors perform through alternating the electricity running via each and every semicircular electromagnet. The inside about the drive, which has two oppositely magnetized everlasting magnets, not electromagnets, turns within accordance with magnetic repulsion and attraction.

When the inside of the motor's magnets repel away from the external semicircular electromagnets, the engine turns in a certain direction. After making one particular revolution, the current performing through the electromagnets remains reversed, which reverses their magnetization. The everlasting magnets of the inner part about the motor then become repelled away out of the semicircular electromagnet that is they were just attracted to. This lead to the car to turn, which creates mechanical energy.

A Final Review

Wikipedia: Electric Motor Information on the Photoelectric Effect

http://www.nrel.gov