![]() ![]() The solar cell measured for the setup shown below, for example, had a V oc = 1.2 volts in full sunlight.įlip over the solar cell (see photo below), and watch what happens to the meter reading. ![]() Tilt the solar cell in sunlight or lamplight and notice how the V oc changes. Since no current flows through a perfect voltmeter, a voltmeter measures the open circuit’s voltage. This is the voltage when no current is flowing through the cell. Measure the open circuit voltage ( V oc) across the solar cell. Then use the black clip lead to connect the common (COM) terminal of the meter to the negative terminal of the solar cell (see photos below). Using the red clip lead, connect the positive terminal of the meter to the positive terminal of the solar cell. Working outside, in a sunny place (or indoors, under a 100-watt incandescent bulb), set the multimeter to the DC voltage scale so it can measure a few volts. ![]()
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