# data[].attributes.body
Jan Teichmann
Redjion Halilaj
Domenik Öhlhorn
Justin Thiele

# data[].attributes.body
Google Bilder
Wikipedia

# data[].attributes.body
Piezoelectricity, also known as the piezoelectric effect or piezoelectric effect. It describes the change in electrical polarization and thus the appearance of an electrical voltage on solids when it is elastically deformed (direct piezo effect). Conversely, materials deform when an electrical voltage is applied (inverse piezo effect).

# data[].attributes.headline
                                                                                      Voltage source 

# data[].attributes.subject
                                                                                      Voltage source 

# data[].attributes.body
1. In circuit theory in electrical engineering, a voltage source is an active two-terminal pole that supplies an electrical voltage between its connection points.

2. A voltage source is preferably used as an electrical energy source that supplies electrical current as a function of the connected consumer

# data[].attributes.body
Photovoltaics or photovoltaics are understood as the direct conversion of light energy, mostly from sunlight, using solar cells into electrical energy.Photovoltaics is a sub-area of ​​solar technology that includes other technical uses of solar energy.

# data[].attributes.body
A battery is a store for electrical energy on an electrochemical basis.A battery is an electrical or galvanic cell and thus an electrochemical energy storage and an energy converter. During the discharge, stored chemical energy is converted into electrical energy by the electrochemical redox reaction. This can be used by an electrical consumer that is independent of the power grid.

# data[].attributes.body
An electric generator is an electrical machine that converts kinetic energy into electrical energy.The mechanical power is supplied to the generator in the form of the rotation of a mechanical shaft.