Electrical Formulas and Extras to know for NEC State Electricians Test

Electrical Formulas and Extras to know for NEC State Electricians Test What is the formula for true power? ️P(t) = (I)^2 x R What is the formula to calculate apparent power? ️P(A) = E x I What is the formula to find the power factor? ️PF = P(T) / (P(A) What does "I" represent in electrical formulas? ️Amperes What does "E" stand for in electrical formulas? ️Volts What does "kW" stand for in electrical formulas? ️Kilowatts What does "kVA" stand for in electrical formulas? ️Kilovolt-Amperes What does "HP" stand for in electrical formulas? ️Horse Power What does "%EFF" stand for in electrical formulas? ️Percent Efficiency What does "PF" stand for in electrical formulas? ️Power Factor What does "P(t)" stand for? ️True Power What does "R" stand for in electrical formulas? ️Resistance (in Ohms) What does "P(a)" stand for? ️Apparent Power What is the formula to find current? ️I = E/R (Current = Voltage / Resistance) What is the formula to find voltage? ️E = I x R ( Voltage = Current x Resistance) What is the formula to find resistance? ️R = E/I (Resistance = Voltage / Current) Conductors that supply a single motor used in a continuous duty application shall have an ampacity of not less than ___% of the motor full load current rating. ️125% What table lists where to find overcurrent protection requirements for different equipment? ️Table 240.3 What is the square root of three? ️1.732 What does "VD" mean in electrical formulas? ️Voltage Drop