Electrical Machines The three point starter is used for Shunt motor as well as compound motors. Shunt, compound and series motor. Shunt motor. Series motor. Shunt motor as well as compound motors. Shunt, compound and series motor. Shunt motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The external resistance to be added in the armature circuit to limit the armature current to 125% of its rated value is 15.9 Ω 31.1 Ω 31.9 Ω 15.1 Ω 15.9 Ω 31.1 Ω 31.9 Ω 15.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? All of these. Applied voltage. Armature current Ia. Field flux. All of these. Applied voltage. Armature current Ia. Field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon supply frequency maximum flux density both 2 and 3 load current supply frequency maximum flux density both 2 and 3 load current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature of DC machine is made of conducting material. non-ferrous material. silicon steel. insulating material. conducting material. non-ferrous material. silicon steel. insulating material. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Current in a coil undergoing commutation is not able to get reversed completely by the end of commutation period. It is due to armature emf. reactance voltage induced in the coil. coil resistance. None of these armature emf. reactance voltage induced in the coil. coil resistance. None of these ANSWER DOWNLOAD EXAMIANS APP
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