Electrical Machines In a transformer, hysteresis and eddy current losses depend upon load current both 2 and 3 supply frequency maximum flux density load current both 2 and 3 supply frequency maximum flux density ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutators in DC machines have a role of which converts Both AC to DC and DC to AC. AC to DC. none of these. high voltage DC to low voltage DC. Both AC to DC and DC to AC. AC to DC. none of these. high voltage DC to low voltage DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main purpose of providing tertiary winding in a three phase transformer is to carry extra load. to interconnect three voltage systems. None of these to suppress harmonic and unbalance in voltage. to carry extra load. to interconnect three voltage systems. None of these to suppress harmonic and unbalance in voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque developed in IM is nearly proportional to V2. 1 / V. 1 / V2. V. V2. 1 / V. 1 / V2. V. 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 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 both decrese ANSWER DOWNLOAD EXAMIANS APP
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