Calculate the resistances using Equation 1-2 for each voltage / current pair you obtained from Step 5/(a thru d). Use the voltage measured by the DMM, not the voltage displayed by the LVPS! Are the calculated resistances constant, roughly constant, or widely varying? If not exactly constant, do they show a trend? Calculate the power released by the light bulb using Equation 1-3 for each voltage / current pair you obtained from Step 5/(a thru d). =(1-3) where P is power in watts [W], V is voltage in volts [V], and I is current in amps [A]. Only ~ 20% of its power is released as light; the rest is lost to heat.