01․ In DC generator on no-load, the air gap flux distribution in space is
Under construction.
02․ Flashing the field of DC generator means
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03․ Open circuited armature coil of a DC machine is
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04․ In a Dc generator the magnetic neutral axis coincide with geometrical neutral axis, when
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05․ A 220 V DC generator is run at full speed without any excitation. The open circuit voltage will be
Under construction.
06․ If residual magnetism is present in a DC generator, the induced emf at zero speed will be
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07․ The armature mmf of a DC machine has
Under construction.
08․ The armature MMF waveform of a DC machine is
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09․ In a DC generator, the ripples in the direct emf generated are reduced by employing
Under construction.
10․ To avoid formation of grooves in the commutator
Under construction.
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