Electrical Machines In DC machine torque depends on which of the following? both A and B flux (φ) armature current (I) speed both A and B flux (φ) armature current (I) speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field winding of a DC series motor is usually provided with thick wire to provide large flux. in order to reduce eddy current to provide large flux. as it carries large load current. to reduce the insulation of materials. to provide large flux. in order to reduce eddy current to provide large flux. as it carries large load current. to reduce the insulation of materials. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of any electrical motor is taken from the Coupling mounted on the shaft. Motor frame. Field. Armature. Coupling mounted on the shaft. Motor frame. Field. Armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Satisfactory commutation of DC machine requires All of these brushes should smoothly run in the holders. smooth, concentric commutator properly undercut. brushes should be of proper grade and size. All of these brushes should smoothly run in the holders. smooth, concentric commutator properly undercut. brushes should be of proper grade and size. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a DC series motor is Proportional to field current. Proportional to the armature current. Inversely proportional to the armature current. Proportional to the square of the armature current. Proportional to field current. Proportional to the armature current. Inversely proportional to the armature current. Proportional to the square of the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is 1.92 -1.92 -0.08 0.08 1.92 -1.92 -0.08 0.08 ANSWER DOWNLOAD EXAMIANS APP
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