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?

A resistance is connected in series with armature
A resistance is connected parallel to the armature
Armature is temporarily open circuited
A high value resistor is connected across the field winding

LohaHridoy

6 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 1

6 views Answered 2022-09-01 13:21

Related Questions

If two currents are in the same direction at any instant of time in a given branch of a circuit, the net current at that instant?

1 Answers 5 Views

In D.C. machines, ir order to prevent excessive distortion of field form by the armature reaction, the field mmf must be made?

1 Answers 5 Views

The current drawn by the armature of D.C. motor is directly proportional to?

1 Answers 4 Views

In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be?

1 Answers 16 Views

The armature current of the synchronous motor has higher values for?

1 Answers 4 Views

In a synchronous motor, the armature current has large values for?

1 Answers 4 Views

The armature current of the synchronous motor?

1 Answers 6 Views

While starting a salient pole synchronous motor by induction motor action and connecting field discharge resistance across field, starting and accelerting torque is produced by?

1 Answers 5 Views

In a synchronous motor it the back e.m.f. generated in the armature at noload is approximately equal to the applied voltage, then?

1 Answers 4 Views

As the load is applied to a synchronous motor, the motor takes more armature current because?

1 Answers 5 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)