Electrical Machines Generators work on the principle of production of statically induced emf. dynamically induced emf. dynamically and statically induced emf. None of these statically induced emf. dynamically induced emf. dynamically and statically induced emf. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on rotor speed. synchronous speed. shaft torque. core loss component. rotor speed. synchronous speed. shaft torque. core loss component. 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? 20 N. Can't be determined. 15 N. None of these. 20 N. Can't be determined. 15 N. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in star. delta or star according to need. None of these delta. star. delta or star according to need. None of these delta. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction effect is more in which of the following methods? None of these armature resistance control field weakening method same in both methods None of these armature resistance control field weakening method same in both methods ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of a permanent magnet dc motor is 0.8 Ohm. At no load, the motor draws 1.5 A from a supply voltage of 25 V and runs at 1500 rpm. The efficiency of the motor while it is operating on load at 1500 rpm drawing a current of 3.5 A from the same source will be 59.2%. 57.1%. 48.0%. 88.8%. 59.2%. 57.1%. 48.0%. 88.8%. ANSWER DOWNLOAD EXAMIANS APP
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