What are the advantage of free wheeling diode in a Full Wave rectifier? March 3, 2018 by DWQA Questions › Category: Basic of Electrical Engineering › What are the advantage of free wheeling diode in a Full Wave rectifier? 0 Vote Up Vote Down admin Staff asked 6 years ago 1 Answers 0 Vote Up Vote Down admin Staff answered 6 years ago Answer: It reduces the harmonics and it also reduces sparking and arching across the mechanical switch so that it reduces the voltage spike seen in a inductive load.