An electric motor operating at a 100 V D.C. supply draws a current of 12 A. If the efficiency of the motor is 30%, calculate the resistance of its winding.

2.31 Ω 7.13 Ω 3.24 Ω 5.83 Ω

5.83 Ω

The correct answer is Option (4) → 5.83 Ω