1.1 Describe The Steps Needed To Do A Graphical Analysis Of The Supply Current To An Electronic Ballast With A Passive Power Factor Corrector Stage. (7) 1.2 What Is The Minimum Number Of Samples Needed If The Highest Frequency To Be Determined With A Graphical Analysis Is 450 Hz And The Supply Is 50 Hz ? (1) 1.3 The Supply Current To A High-Frequency