A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a

Electrical Machines
A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a

differentially compounded motor in the same direction

differentially compounded motor in the opposite direction

cumulative compounded motor in opposite direction

cumulative compounded motor in the same direction

differentially compounded motor in the same direction

differentially compounded motor in the opposite direction

cumulative compounded motor in opposite direction

cumulative compounded motor in the same direction

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Electrical Machines
Eg (generated emf) and Eb (back emf) both are

changes.

same.

different.

none of above.

changes.

same.

different.

none of above.

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Electrical Machines
Which of the following motor is more expensive for same KW output rating ?

Synchronous motor.

AC single phase motor.

Induction motor.

DC Shunt Motor

Synchronous motor.

AC single phase motor.

Induction motor.

DC Shunt Motor

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Electrical Machines
Which of the following motors is/are widely used?

squirrel cage induction motor

None of these

either of these

slip ring induction motor

squirrel cage induction motor

None of these

either of these

slip ring induction motor

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Electrical Machines
An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will

come to stand still.

continue to work as alternator but the direction of rotation will reverse.

continue to work as synchronous motor with same direction of rotation.

start working as induction motor.

come to stand still.

continue to work as alternator but the direction of rotation will reverse.

continue to work as synchronous motor with same direction of rotation.

start working as induction motor.

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Electrical Machines
Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each.

cant be determined.

266.20 N-m.

133.22 N-m

234.76 N-m.

cant be determined.

266.20 N-m.

133.22 N-m

234.76 N-m.

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Electrical Machines

Electrical Machines A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a

Electrical Machines Eg (generated emf) and Eb (back emf) both are

Electrical Machines Which of the following motor is more expensive for same KW output rating ?

Electrical Machines Which of the following motors is/are widely used?

Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will

Electrical Machines Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each.

Electrical Machines
A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a

Electrical Machines
Eg (generated emf) and Eb (back emf) both are

Electrical Machines
Which of the following motor is more expensive for same KW output rating ?

Electrical Machines
Which of the following motors is/are widely used?

Electrical Machines
An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will

Electrical Machines
Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each.