Electrical Machines A 4 pole DC generator runs at 750 rpm and generate an emf of 240 V. The armature is wave wound and has 792 conductors. If the total flux from each pole is 0.0145 Wb. What is the leakage co-efficient? 1.5. 1.2. 1.4. 1.8. 1.5. 1.2. 1.4. 1.8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as boo. zoom. hum. magnetostriction. boo. zoom. hum. magnetostriction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In diesel engine, gas engine type of machine contains ___________________ pole type of alternator. cylindrical. non uniform cylindrical. none of these. salient. cylindrical. non uniform cylindrical. none of these. salient. 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 ∝ 1/(φf) E ∝ f/φ E ∝ φ/f E ∝ φf E ∝ 1/(φf) E ∝ f/φ E ∝ φ/f E ∝ φf ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor fitted with ceiling / table fans is of the value of 0.1 µF. 1 - 2 µF. 2 - 3 µF. 5 - 10 F. 0.1 µF. 1 - 2 µF. 2 - 3 µF. 5 - 10 F. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 21% 10% 11% 41% 21% 10% 11% 41% ANSWER DOWNLOAD EXAMIANS APP
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