Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 1130 r.p.m. 1037.5 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. 1130 r.p.m. 1037.5 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shapers and slotters which motor are preferred? Squirrel cage IM. Synchronous motor. Double cage motor. Slip ring IM. Squirrel cage IM. Synchronous motor. Double cage motor. Slip ring IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss? 1/S 1-S S 1/(1-S) 1/S 1-S S 1/(1-S) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltage regulation of a DC generator at full load being zero implies that the generator is shunt connected. cumulatively compounded. series connected. deferentially compounded. shunt connected. cumulatively compounded. series connected. deferentially compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each. 234.76 N-m. cant be determined. 266.20 N-m. 133.22 N-m 234.76 N-m. cant be determined. 266.20 N-m. 133.22 N-m 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 50 V zero 40 V 20 V 50 V zero 40 V 20 V ANSWER DOWNLOAD EXAMIANS APP
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