EXAMIANS
Winding conductors of an electrical power transformer are mainly insulated by
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The armature voltage control is considered suitable for a DC motor driven at constant
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The basic function of a transformer is to change
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For a given torque, reducing diverter resistance of a DC series motor causes
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A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series
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Regenerative braking is not found in which motor?
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In 3 - Φ induction motor some times copper bars are placed deep in the rotor to
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Which of the following is/are the methods to reduce the armature reaction and its effects?
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In which of the following, voltage regulation may be zero or negative
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A DC shunt generator builds up 230 V when driven in clockwise direction. In case it is driven in anti clockwise direction, other things remaining unchanged, then the voltage build up is
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