Maximum power will be developed when back emf is

Electrical Engineering XYZ MCQ

Maximum power will be developed when back emf is:

1. Half of the supply voltage
2. Double the supply voltage
3. Equal to supply voltage
4. All of these

Correct answer: 1. Half of the supply voltage

Explanation: The maximum power will be developed when back emf is half of the supply voltage. Mathematically:

E_b = V_t/2