Electrical Machines In a DC machine current and emf in armature are alternating. current and emf at the terminals are alternating. emf in armature conductors and at the terminals is alternating. current and emf in armature are unidirectional current and emf in armature are alternating. current and emf at the terminals are alternating. emf in armature conductors and at the terminals is alternating. current and emf in armature are unidirectional 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 torque. Torque and field current. Armature current and field current. Power factor and field current. Armature current and torque. Torque and field current. Armature current and field current. Power factor and field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in DC generators will result in increase in slip. short circuit. open circuit. reduction in generated emf. increase in slip. short circuit. open circuit. reduction in generated emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The breakdown torque of a synchronous motor varies as applied voltage V 1/V² 1/V V² applied voltage V 1/V² 1/V V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is used for the _______ ? None of these above rated speed both 1 and 2 below rated speed None of these above rated speed both 1 and 2 below rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An auto transformer having a transformation ratio of 0.8 supplies a load pf 10 KW. The power transfered inductively from the primary to secondary is 2 KW. 8 KW. 0. 10 KW. 2 KW. 8 KW. 0. 10 KW. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS