karterkupcake9866 karterkupcake9866 08-02-2024 Engineering contestada An electric motor runs on a DC source of emf 200 V and draws a current of 10 A. If the efficiency is 40%, then the resistance of the armature is ____(1) 5 Ω(2) 12 Ω(3) 120 Ω(4) 160 Ω