Electrical Machines In a resistance split phase motor, what is the range of torque angle? 0° 90° 70° to 85° 25° to 30° 0° 90° 70° to 85° 25° to 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if φ is the flux per pole and f is the frequency of the emf induced E then E ∝ φf E ∝ f/φ E ∝ 1/(φf) E ∝ φ/f E ∝ φf E ∝ f/φ E ∝ 1/(φf) E ∝ φ/f ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is infinite value 0 1 finite value infinite value 0 1 finite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer core is made up of a silicon steel laminations which has maximum flux density 1 Tesla. If it was cold rolled grain oriented its flux density increases to 1.6 Tesla. What is the saving in core size or area due to cold rolled grain oriented process? 68% 38% 60% 40% 68% 38% 60% 40% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss? 1-S 1/S 1/(1-S) S 1-S 1/S 1/(1-S) S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Diverters are used only in either of these None of these series motors shunt motors either of these None of these series motors shunt motors ANSWER DOWNLOAD EXAMIANS APP
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