Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as V² f V f² V² f V f² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor will deliver maximum power when load angle is equal to internal angle θ. input power factor is unity. load angle is 45°. load angle is 0°. load angle is equal to internal angle θ. input power factor is unity. load angle is 45°. load angle is 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the cause of rapid brush wear may be any of above. rough commutator surface. imperfect contact. severe sparking. any of above. rough commutator surface. imperfect contact. severe sparking. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. rotor can not have any laminations. sipper. thinner. thicker. rotor can not have any laminations. sipper. thinner. thicker. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer the magnetic coupling between the primary and secondary winding can be increased by using soft material for winding. increasing the number of turns. using transformer oil of better quality. using the magnetic core of low reluctance. using soft material for winding. increasing the number of turns. using transformer oil of better quality. using the magnetic core of low reluctance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generators are usually designed to develop armature voltages not exceeding 650 V because of the limitations imposed by armature winding field winding starters commutator armature winding field winding starters commutator ANSWER DOWNLOAD EXAMIANS APP
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