Electrical Machines On what factors the speed of dc motor depends? Applied voltage. Field flux. All of these. Armature current Ia. Applied voltage. Field flux. All of these. Armature current Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net voltage across the armature resistance at the time of plugging will be 474 V 234 V 240 V 6 V 474 V 234 V 240 V 6 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Minimum allowable resistivity of power transformer insulating oil is generally taken as 4 X 1012 Ω - cm at 27°C and 0.4 X 1012 2 X 1012 Ω - cm at 27°C and 0.2 X 1012 3 X 1012 Ω - cm at 27°C and 0.3 X 1012 1 X 1012 Ω - cm at 27°C and 0.1 X 1012 4 X 1012 Ω - cm at 27°C and 0.4 X 1012 2 X 1012 Ω - cm at 27°C and 0.2 X 1012 3 X 1012 Ω - cm at 27°C and 0.3 X 1012 1 X 1012 Ω - cm at 27°C and 0.1 X 1012 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum efficiency will occur, when copper loss is_______to iron loss? equal to any of the above less than greater than equal to any of the above less than greater than ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of stator winding. rotor winding. None of these either stator winding or rotor winding. stator winding. rotor winding. None of these either stator winding or rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers both A and B produce working flux mechanical protection to the machine flux path completion both A and B produce working flux mechanical protection to the machine flux path completion ANSWER DOWNLOAD EXAMIANS APP
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