Identify the primary side by selecting the correct option. Side A Side B Select the current tapping positions for the secondary side B b2 is at 50% and b3 at 86% of coil b1b4 b2 is at 86% and b3 at 50% of coil b1b4 b2 is at 50% and b3 at 75% of coil b1b4 Instead of a2a3 if we short a2a4 then what will be voltage accross a1a3 110 volt 220 volt 0 volt Instead of a2b4 if we short a2b1 then what will be voltage accross a1b4 0 volt 108 volt 218 volt Which of the terminals have the same instantaneous polarity ? a1, a4 and b1 a2, a4 and b4 a2, a4 and b1