Page No. 93
The laminations of the armature of a D.C. machine are usually ___________ thick?
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D.C. servomotors are used in______________?
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The cylindrical windings using circular conductors are used for current rating of____________?
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Which of the following in an application of D.C. motors?
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The stator of a D.C. machine comprises of_____________?
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is usually used for brush rockers____________?
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Which of the following brushes can be used for high values of current density ?
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Which of the following problem arises in D.C. motors which are fed from thyristor bridge circuits ?
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In a D.C. machine the number of brush arms is _________ the number of poles?
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D.C. machines designed with a large value of air gap length have_____________?
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