Electrical Machines The armature resistance of the dc motor is generally of the range 0.1 ohm. 50 ohm. 100 ohm. 0.5 ohm. 0.1 ohm. 50 ohm. 100 ohm. 0.5 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A slip ring Induction motor runs at 290 rpm at full load, when connected to 50 Hz supply. Determine the number of poles and slip. P = 40, s = 5.79 %. P = 60, s = 0.96 %. P = 50, s = 4.43 %. P = 20, s = 3.33 %. P = 40, s = 5.79 %. P = 60, s = 0.96 %. P = 50, s = 4.43 %. P = 20, s = 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the pitch factor? Cos α² Cos α Cos (α/2) sin (α/2) Cos α² Cos α Cos (α/2) sin (α/2) 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 increase by 100% increase by 200% remain unaltered reduced to half increase by 100% increase by 200% remain unaltered reduced to half ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The working principle of transformer depends on Amperes law. Coulombs law. Newtons law. Faradays law of electromagnetic induction. Amperes law. Coulombs law. Newtons law. Faradays law of electromagnetic induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. armature circuit shunt field both A and B none of above armature circuit shunt field both A and B none of above ANSWER DOWNLOAD EXAMIANS APP
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