Electrical Machines The field divertor resistance for a DC series motor is of order of 100 Ω 50 Ω 10 Ω 0.1 Ω 100 Ω 50 Ω 10 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a AC generator DC motor induction motor DC generator AC generator DC motor induction motor DC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The back emf produced in a dc motor depends on P and Z. Z. none of these. P. P and Z. Z. none of these. P. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a short circuit test on a transformer is performed at 25 V, 50 Hz, the drawn current is I1. If the test is performed by 25 V and 25 Hz and power drawn current is I2, then None of these I1 > I2 I1 = I2 I1 < I2 None of these I1 > I2 I1 = I2 I1 < I2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a loaded DC generator, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will improve with fall of terminal voltage. deteriorate with fall of terminal voltage. deteriorate with rise in terminal voltage. improve with rise in terminal voltage. improve with fall of terminal voltage. deteriorate with fall of terminal voltage. deteriorate with rise in terminal voltage. improve with rise in terminal voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 200Hz. 50Hz. 100Hz. 150Hz. 200Hz. 50Hz. 100Hz. 150Hz. ANSWER DOWNLOAD EXAMIANS APP
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