Electrical Machines Lamination of transformer core is made of silicon steel. wrought iron. cast iron. cast steel. silicon steel. wrought iron. cast iron. cast steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a differentially compounded motor in the opposite direction cumulative compounded motor in opposite direction differentially compounded motor in the same direction cumulative compounded motor in the same direction differentially compounded motor in the opposite direction cumulative compounded motor in opposite direction differentially compounded motor in the same direction cumulative compounded motor in the same direction ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 440 volt. 230 volt. 220 volt. 240 volt. 440 volt. 230 volt. 220 volt. 240 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer maximum flux density is not constant, the eddy current loss varies as f² V² f V f² V² f V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will none of these. Decrease.d remains same. increase. none of these. Decrease.d remains same. increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on Y-axis and armature current on X-axis. either of these. field current on X-axis and armature current on Y-axis. field current on X-axis and power factor on Y-axis. field current on Y-axis and armature current on X-axis. either of these. field current on X-axis and armature current on Y-axis. field current on X-axis and power factor on Y-axis. ANSWER DOWNLOAD EXAMIANS APP
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