Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will Decrease.d increase. none of these. remains same. Decrease.d increase. none of these. remains same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For pure resistive load what is the armature reaction? cross magnetization All of these demagnetization magnetization cross magnetization All of these demagnetization magnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Avoid sparking. Limit the current. Limit the speed. Limit the flux. Avoid sparking. Limit the current. Limit the speed. Limit the flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an ideal DC generator the regulation is low. positive. zero. high. low. positive. zero. high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature flux is.............with respect to main field flux or main field poles? None of these stationary rotates same direction rotates opposite direction None of these stationary rotates same direction rotates opposite direction ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? All of these Copper loss Iron loss Rotational loss All of these Copper loss Iron loss Rotational loss ANSWER DOWNLOAD EXAMIANS APP
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