Electrical Machines Which of the following represents the rotating losses of machine? Friction and windage losses Hysteresis losses All of the them Eddy current losses Friction and windage losses Hysteresis losses All of the them Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A cumulatively compounded dc motor delivers rated load power at rated speed. If the series field is short-circuited, then both decrese both armature current Ia and speed ωm increase Ia remains constant but ωm increase Ia increases and ωm decreses both decrese both armature current Ia and speed ωm increase Ia remains constant but ωm increase Ia increases and ωm decreses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer action requires a constant magnetic flux. alternating electric flux. alternating magnetic lux. increasing magnetic flux. constant magnetic flux. alternating electric flux. alternating magnetic lux. increasing magnetic flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shaded pole induction motors, the flux moves from ------------- region to ----------------- region respectively? unshaded, unshaded unshaded, shaded shaded, shaded shaded, unshaded unshaded, unshaded unshaded, shaded shaded, shaded shaded, unshaded ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally None of these. Cummulative compound. Level Compound. Differentical compound. None of these. Cummulative compound. Level Compound. Differentical compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutators in DC machines have a role of which converts Both AC to DC and DC to AC. high voltage DC to low voltage DC. AC to DC. none of these. Both AC to DC and DC to AC. high voltage DC to low voltage DC. AC to DC. none of these. ANSWER DOWNLOAD EXAMIANS APP
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