Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3.33% -3% +3% -3.33% +3.33% -3% +3% -3.33% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will remain unaltered reduced to half increase by 200% increase by 100% remain unaltered reduced to half increase by 200% increase by 100% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is 16. 8. 32. 4. 16. 8. 32. 4. 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 The slight curvature at the lower end of the OCC of a self excited DC generator is due to magnetic inertia. high field resistance. residual flux. high speed. magnetic inertia. high field resistance. residual flux. high speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the mechanical power is developed by a DC motor maximum back emf is equal to applied voltage. Back emf is equal. Back emf is equal to half of applied voltage. None of above. back emf is equal to applied voltage. Back emf is equal. Back emf is equal to half of applied voltage. None of above. ANSWER DOWNLOAD EXAMIANS APP
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