Electrical Machines Air core transformer as compared to iron core transformer, has less magnetic core loss. more magnetic core loss. no magnetic core loss. more copper loss. less magnetic core loss. more magnetic core loss. no magnetic core loss. more copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the e.m.f. generated by a 4 pole lap connected DC Generator rotating at 1500 r.p.m.? Its flux per pole is 0.4 mWb and total no of armature conductors is 1000. 20 volts. 10 volts. 30 volts. 40 volts. 20 volts. 10 volts. 30 volts. 40 volts. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC generator runs at a speed of 1000 rpm and flux per pole is 0.2 Wb, number of poles are 2 the winding is wave wound and having 480 conductors. The critical speed is 1200 rpm. Then the generated emf ( Eg ) 0 Volt. 1600 Volt. 2000 Volt. 1500 Volt. 0 Volt. 1600 Volt. 2000 Volt. 1500 Volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC Series motor is connected across an AC supply it will not run. burn. run at lower speed. run at normal speed. not run. burn. run at lower speed. run at normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Motor dc series motor. dc shunt with armature resistance control. dc compound motor. dc shunt motor with field weakening. dc series motor. dc shunt with armature resistance control. dc compound motor. dc shunt motor with field weakening. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reversing the direction of rotation of split phase motors is done by interchanging the capacitor from starting winding to main winding or vice versa. All of these reversing the terminals of main winding. reversing the terminals of starting winding. interchanging the capacitor from starting winding to main winding or vice versa. All of these reversing the terminals of main winding. reversing the terminals of starting winding. ANSWER DOWNLOAD EXAMIANS APP
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