What is the maximum mechanical power that a DC series motor can produce ?
A. Back emf is equal to applied voltage
B. Back emf is equal to zero
C. Back emf is equal to half the applied voltage
D. None of them
Electrical Machines Design
Electrical Machines Design Mcqs
If field current is decreased in shunt dc motor, the speed of the motor ___ ?
A. increases
B. decreases
C. remains same.
D. None of them