# In case of D.C. shunt motors the speed is dependent on back e.m.f. only because?

23 views

In case of D.C. shunt motors the speed is dependent on back e.m.f. only because flux is practically constant in D:C. shunt motors.

## Related questions

Do AC induction motors have back EMF?

A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net Voltage across armature resistance at the time of plugging will be

The counter e.m.f. of a d.c. motor?

As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit?

What is the back EMF of a dc motor?

Why does the speed of a DC shunt motor decrease as the load increases?

A shunt generator running at 1000 r.p.m. has generated e.m.f. as 200 V. If the speed increases to 1200 r.p.m., the generated e.m.f. will be nearly?

The back emf of synchronous motor depends on?

The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be?

The speed of a D.C. motor can be controlled by varying  1. Its flux per pole 2. Resistance of armature circuit 3. Applied voltage 4. All of the above

What is the back EMF in Transformers?

What is the back EMF of the motor?

What is back EMF in inductor?

What is back EMF of synchronous motor?

What is the back EMF?

In a Synchronous motor, the magnitude of stator back e.m.f (Eb) depends on

A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is