View Full Version : effect of light intensity on solar panel

01-04-2010, 11:23 PM
regarding to solar panel.....if intensity of light decreases then what is the effect on voltage and current?

01-05-2010, 12:01 AM
Both will decrease.....what else ??:D

Look at it this way- A solar cell is equivalent to a DC source with a series Variable resistance. If you vary the Resistance, the voltage V across the Load and the current I in the circuit both vary in step. In a solar cell, light intensity acts as the variable resistance in the circuit.