Electrical Machines Commutation in a DC machine may be explained as a process how alternate flux affects the main field flux. by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. in which magnetic field is set up. how alternate flux affects the main field flux. by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. in which magnetic field is set up. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing any two leads from slip rings. disconnecting any one phase. transposing any two leads from supply. transposing all the three leads from the supply. transposing any two leads from slip rings. disconnecting any one phase. transposing any two leads from supply. transposing all the three leads from the supply. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Motor 3 point starter is used to provide protection against Low-Voltage. all of above. provide overload protection. limit the starting current to a safer value. provide protection against Low-Voltage. all of above. provide overload protection. limit the starting current to a safer value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound 4 pole dc motor has 460 conductors. Find the number of parallel paths between the conductors? 4. 2. data provided is insufficient. 6. 4. 2. data provided is insufficient. 6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor torque or load angle δ ------------- with increase in load decreases remains unaffected None of these increases decreases remains unaffected None of these increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? In order to get more flux. All of these In order to get saturated. In order to not to get saturated. In order to get more flux. All of these In order to get saturated. In order to not to get saturated. ANSWER DOWNLOAD EXAMIANS APP
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