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A current–voltage characteristic or I–V curve (current–voltage curve) is a relationship, typically represented as a chart or graph, between the electric current through a circuit, device, or material, and the corresponding voltage, or potential difference, across it.

#61 IV Curve.png

Series Connection of PV Modules

Similar to the series connection of 2 batteries, current (I) remains constant while voltage (V) is doubled.

The image below illustrates the effect on the I-V Curve when 2 (or more) PV modules are connected in series.

#66 Series Connection.png

Parallel Connection of PV Modules

Similar to the parallel connection of 2 batteries, voltage (V) remains constant while current (I) is doubled.

The image below illustrates the effect on the I-V Curve when 2 (or more) PV modules are connected in parallel.

#67 Parallel Connection.png
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