Electrical Machines A commutator with a diameter of 50 cm rotating at 1000 rpm. For a brush width of 1.5 cm, find the time of commutation in ms. 0.573. 0.649. 0.443. 0.512. 0.573. 0.649. 0.443. 0.512. 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? None of these. 15 N. 20 N. Can't be determined. None of these. 15 N. 20 N. Can't be determined. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the inner cage offers low resistance and low reactance. high resistance and low reactance. low resistance and high reactance. high resistance and high reactance. low resistance and low reactance. high resistance and low reactance. low resistance and high reactance. high resistance and high reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in none of above. in both machines. synchronous motor. induction motor. none of above. in both machines. synchronous motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 230 V 460 V 200 V 115 V 230 V 460 V 200 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Type of single phase motor having highest power factor at full load is split phase. capacitor start. shaded pole type. capacitor run. split phase. capacitor start. shaded pole type. capacitor run. ANSWER DOWNLOAD EXAMIANS APP
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