Home » English riddles » Transformer » Transformer Riddle No.90 – Ground resistance to restrict 750 mA » Reply To: Transformer Riddle No.90 – Ground resistance to restrict 750 mA Reply To: Transformer Riddle No.90 – Ground resistance to restrict 750 mA 2021-08-03 at 11:08 am #3274 unknown Dear Tarun, Resistance = Phase Voltagex1000/750