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. 266.20 N-m. cant be determined. 133.22 N-m 234.76 N-m. 266.20 N-m. cant be determined. 133.22 N-m 234.76 N-m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 200 V 460 V 230 V 115 V 200 V 460 V 230 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shaded pole single phase induction motor can be used for personal computers as cooling fan wet grinders tape recorders food mixers personal computers as cooling fan wet grinders tape recorders food mixers ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will reduced to half increase by 100% increase by 200% remain unaltered reduced to half increase by 100% increase by 200% remain unaltered ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For an ideal transformer the winding should have equal resistance on primary and secondary side minimum resistance on primary side and maximum resistance on secondary side no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side equal resistance on primary and secondary side minimum resistance on primary side and maximum resistance on secondary side no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The fall in speed of the DC generator due to increase in load can be corrected by reducing the load voltage. cooling the armature. increasing the excitation. increasing the input to the prime mover. reducing the load voltage. cooling the armature. increasing the excitation. increasing the input to the prime mover. ANSWER DOWNLOAD EXAMIANS APP
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