The magneto-motive force is________?
Athe flow of an electric current
Bthe voltage across the two ends of exciting coil
Cthe passage of magnetic field through an exciting coil
Dthe sum of all currents embraced by one line of magnetic field
Correct answer
D. the sum of all currents embraced by one line of magnetic field
Explanation
The correct answer is the sum of all currents embraced by one line of magnetic field.