In case of DC servomotor, the back emf is equivalent to an 'electric friction' which tends to:

Very rapidly decrease the stability of the system

Slowly decrease the stability of the system

Improve stability of the system

In case of DC servomotor, the back emf is equivalent to an 'electric f

1.	In case of DC servomotor, the back emf is equivalent to an 'electric friction' which tends to:
A.	Slowly decrease the stability of the system
B.	Improve stability of the system
C.	Very rapidly decrease the stability of the system
D.	Have no effect of stability
Answer» C. Very rapidly decrease the stability of the system