I basically want to identify the fill-factor of a photo voltaic cell by calculating the ratio of maximum power (Vmp x Jmp) divided by the short-circuit current (Isc) and open-circuit voltage (Voc) in light current density. 1. How am i suppose to set up the circuit, should a voltmeter be parallel to the solar cell and an ammeter be serial to the circuit ? 2. What is meant by short-circuit current and open-circuit voltage ? 3. Are the readings on the voltmeter and ammeter be used to plot a graph of current against voltage ? Thanks!