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Why a dc generator you unable to generate emf even its armature is rotating?
bad connection
What is the function of armature winding of a motor?
Armature is a rotating part of the machine, the coil which wound in the core of that rotating part.
What is the need of commutator in DC generator?
The commutator has two functions: (1) it enables current to pass to the external fixed wiring from the rotating armature, and (2) it is a rotating rectifier, which converts the a.c. voltage generated in the rotating armature, to a d.c. voltage.
Is a commutator the rotating element of a motor?
The commutator is part of the armature on a DC motor and this assembly is the rotating element of a motor.
Why is a rotating field system used in preference toa stationary field?
If you are asking why most a.c. generators (alternators) use a rotating field, rather than a rotating armature, then the answer is that a rotating armature would require slip rings to carry huge currents and be insulated for high voltages, which is not practicable.
What are Effects of reverse connection of armature and field in dc motor?
if any of the connection are reversed ... then armature flux will oppose field flux ... it will net result in reduction of speed ... n may be reversal ... but if both the connections are reverse ... then it will keep rotating in the same direction ...
Why a dc generator you unable to generate emf even its armature is rotating?
bad connection
What is the function of armature winding of a motor?
Armature is a rotating part of the machine, the coil which wound in the core of that rotating part.
Correct definition of the term armature?
The rotating coil of a dynamo or electric motor is called armature.
What is the need of commutator in DC generator?
The commutator has two functions: (1) it enables current to pass to the external fixed wiring from the rotating armature, and (2) it is a rotating rectifier, which converts the a.c. voltage generated in the rotating armature, to a d.c. voltage.
What is the brush used for in a DC motor?
To deliver the current to the rotating armature
Is a commutator the rotating element of a motor?
The commutator is part of the armature on a DC motor and this assembly is the rotating element of a motor.
Why is a rotating field system used in preference toa stationary field?
If you are asking why most a.c. generators (alternators) use a rotating field, rather than a rotating armature, then the answer is that a rotating armature would require slip rings to carry huge currents and be insulated for high voltages, which is not practicable.
Need of changing current direction in 3 phase motor?
Your question is confusing. Are you asking how to reverse the direction of a three-phase motor? If so, then the answer is that you simply interchange any two of the line conductors. This will cause the naturally-rotating magnetic field in the motor's air gap to reverse direction, causing the rotor to reverse direction.
Why is alternating voltage induced in the rotating armature of a generator?
The windings of the armature are constantly cutting magnetic lines of force of opposite polarities
What is armature current?
Armature current is the current flowing in a motor's armature. The "armature" is another name for the coil (or coils) of wire which are on the motor's "rotor", which is the part that rotates inside its stator. (The "stator" is the fixed, non-rotating part of the motor.)
The rotating electromagnet coil assembly in a dc motor is called what?
it is called an armature
