A solar cell, 3.0cm square, has an output of 350mA at 0.80V when exposed to full sunlight. A solar panel that delivers close to 1.3 A of current at an emf of 120V to an external load is need. How many cells will you need to create a solar panel and how big? How many solar panels will you need, and how should connect the cells to one another?

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.