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derive how the photocurrent generated by a PV cell depends on the distance from the light...

derive how the photocurrent generated by a PV cell depends on the distance from the light source. Hints: The shape formed by all points with a certain distance, d, from the light source is a sphere. The area of a sphere is A = 4πr2, where r is the radius, which means the distance from the center. Irradiance is the power of the light from the light source (which is constant) divided by the area. The photocurrent is directly proportional to the irradiance. Write the resulting formula for the photocurrent, i, as a function of distance, d, here:.....

Based on your theoretically derived formula, which power of d is i proportional to?
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