Electrical Machines Addition of 0.3 % to 4.5 % silicon to iron increases the electrical resistivity of iron. increases the hysteresis loss. None of these reduces the saturation magnetization. increases the electrical resistivity of iron. increases the hysteresis loss. None of these reduces the saturation magnetization. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation of transformer is given by (E2 - V2) / V2 (E2 - V2) / E2 (V2 - E2) / E2 (V2 - E2) / V2 (E2 - V2) / V2 (E2 - V2) / E2 (V2 - E2) / E2 (V2 - E2) / V2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In the V curve shown in figure below for a synchronous motor, the parameter of Y and X coordinates are, respectively Armature current and field current. Armature current and torque. Power factor and field current. Torque and field current. Armature current and field current. Armature current and torque. Power factor and field current. Torque and field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for electromechanical energy conversion generation of voltage commutation development of torque electromechanical energy conversion generation of voltage commutation development of torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following generators negative voltage regulation can occur? shunt generator series generators over compound generator both B and C shunt generator series generators over compound generator both B and C ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The short circuit test on a transformer is conducted to obtain core loses only. copper losses. eddy current loss. hysteresis loss. core loses only. copper losses. eddy current loss. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
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