Electrical Machines What is the emf generated by a 4 pole Lap connected DC Motor rotating at 1500 rpm having 1000 conductors and useful flux per pole is 0.4 mWb. 20 volts. 40 volts. 10 volts. 30 volts. 20 volts. 40 volts. 10 volts. 30 volts. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed depends on voltage reactance load angle both 1and 2 voltage reactance load angle both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The volt-ampere euation for a long-shunt compound motor is given by Vt = Ea + Iara+ ILrs Vt = Ea + Ia(ra + rs) Vt= Ea + Iara Vt= Ea– Iara Vt = Ea + Iara+ ILrs Vt = Ea + Ia(ra + rs) Vt= Ea + Iara Vt= Ea– Iara ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in winding conductors and steel structures of transformer. transformer insulating oil. steel core. paper insulation in transformers. winding conductors and steel structures of transformer. transformer insulating oil. steel core. paper insulation in transformers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be Less than 50 % Around 100 %. Around 90 % Any where between 75 % and 90 %. Less than 50 % Around 100 %. Around 90 % Any where between 75 % and 90 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For small value armature current Ia the torque developed by a DC series motor is proportional to Ia2. √Ia. 1/Ia. Ia. Ia2. √Ia. 1/Ia. Ia. ANSWER DOWNLOAD EXAMIANS APP
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