Electrical Machines A flat compound generator is obtained from compound generator by connecting a variable resistor in parallel with the series field in series with the series field in parallel with the shunt field in series with the shunt field in parallel with the series field in series with the series field in parallel with the shunt field in series with the shunt field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is increased, the power factor is leading power factor None of these unity power factor lagging power factor leading power factor None of these unity power factor lagging power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1Ω. If the full load current is 20 A, the difference of induced voltage and generator is 20 V. 60 V. 40 V. 0 V. 20 V. 60 V. 40 V. 0 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors normally use cast aluminium rotor because aluminium is of low resistivity. cheaper in cost. lighter in weight. easy to cast owing to its low melting point and is easily available. of low resistivity. cheaper in cost. lighter in weight. easy to cast owing to its low melting point and is easily available. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator runs at 750 rpm and generate an emf of 240 V. The armature is wave wound and has 792 conductors. If the total flux from each pole is 0.0145 Wb. What is the leakage co-efficient? 1.8. 1.2. 1.4. 1.5. 1.8. 1.2. 1.4. 1.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce iron loss. volume of copper. volume of iron. reluctance of core. iron loss. volume of copper. volume of iron. reluctance of core. ANSWER DOWNLOAD EXAMIANS APP
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