Electrical Machines As compared to an induction motor, the air gap in a DC motor is same. less than 50%. between 50% and 90%. more. same. less than 50%. between 50% and 90%. more. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor electromotive force of the IM is observed to make 100 complete alterations per minute, calculated slip None of these 0 .001 %. 3.33 %. 3 %. None of these 0 .001 %. 3.33 %. 3 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is 20 V zero 50 V 40 V 20 V zero 50 V 40 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by sf / 2. f / s. s2. sf. sf / 2. f / s. s2. sf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Armature. Brush. Yoke. Commutator. Armature. Brush. Yoke. Commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A flat compound generator is obtained from compound generator by connecting a variable resistor in series with the shunt field in series with the series field in parallel with the shunt field in parallel with the series field in series with the shunt field in series with the series field in parallel with the shunt field in parallel with the series field ANSWER DOWNLOAD EXAMIANS APP
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