Solar cells work by collecting sunlight and converting it to usable energy. This energy can be used onsite or transported short distances to the local power grid. A typical modern solar cell consists of a transparent pro... More »

Manufacturers make solar cells from pure silicon that is treated with phosphorous to produce excess electrons and boron; this generates a deficiency of electrons, creating a semiconductor. The thin silicon disks produced... More »

Begin by getting two glass plates the size of microscope slide covers, and clean both with alcohol. Touch the surfaces with multimeter leads to determine which side is conductive, and then place one plate with the conduc... More »

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Electrochemical cells generate or use electrical energy through oxidation and reduction reactions. One example is a cell composed of zinc and copper metals in which electrons travel from the zinc to the copper. Each elec... More »

The difference between a cell and a battery is that a cell is a single unit that converts chemical energy into electrical energy, and a battery is a collection of cells. According to expert Mary Bellis, each ce... More »

When photovoltaic cells are hit by sunlight, photons are absorbed, electrons are released and capturing those free electrons causes an electric current. Photovoltaic cells create a direct current (DC), which must be tran... More »

Load cells are typically built using foil strain gauges that are resistively bonded to a metallic member. When the metallic member becomes stressed by the application of a force, a change in resistance occurs due to the ... More »