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OCR: Calculate LED Resistor Value Led Values General Guide Single Parallel Series red pue green 20ma /2 volts blue pue white 30ma volts Source Voltage Diode Forward Voltage Note resistor on wil parallel l I work ILED's LED's as are shown the here a same. single However Diode Forward Current (ma it is a better practice each led t0 have its own resistor.In this case figure for single LED number of LED's Calculate Flat Resistor Value ohms Equation for Resistor 0.7 Resistor Wattage VI 0.08 Supply Current Circuit Symbol Vcc (gnd) Sindle will