Electrical Machines In alternator, the rotary part is magnetic field poles. armature. none of these. core. magnetic field poles. armature. none of these. core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor armature conductor of length 0.5 m is exposed to a flux density of 4 Wb / m2. Calculate the force experienced by the conductor, when the armature current is 5 Amp? Can't be determined. 15 N. None of these. 20 N. Can't be determined. 15 N. None of these. 20 N. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is 0.8. 0.4. 0.6. 1. 0.8. 0.4. 0.6. 1. 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 residual flux. high speed. magnetic inertia. high field resistance. residual flux. high speed. magnetic inertia. high field resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies inversely as 1/Xs directly as synchronous reactances Xs All of these directly as Xs2 inversely as 1/Xs directly as synchronous reactances Xs All of these directly as Xs2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through slip rings. solid connection. none of above. commutator. slip rings. solid connection. none of above. commutator. ANSWER DOWNLOAD EXAMIANS APP
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