Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as boo. magnetostriction. hum. zoom. boo. magnetostriction. hum. zoom. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on dielectric losses. core losses. stray losses. copper losses. dielectric losses. core losses. stray losses. copper losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? Cross magnetization Magnetization Demagnetization None of these Cross magnetization Magnetization Demagnetization None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output voltage of a DC generator is E = V + Ia. E = V – IaRa. E = V + Ra. E = V + IaRa. E = V + Ia. E = V – IaRa. E = V + Ra. E = V + IaRa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature mmf All of these armature current armature flux armature mmf All of these armature current armature flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 4. 8. 2. 6. 4. 8. 2. 6. ANSWER DOWNLOAD EXAMIANS APP
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