Electrical Machines Skewing of cage rotors offers the following advantages less noise. all of below. locking tendency is reduced. uniform torque. less noise. all of below. locking tendency is reduced. uniform torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 220 volt. 230 volt. 440 volt. 240 volt. 220 volt. 230 volt. 440 volt. 240 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss is proportional to f. f1.5. f3. f2. f. f1.5. f3. f2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the armature electric current is increased to double its previous value, and the time of commutation is halved, how will the reactance voltage vary? It will becomes four times. It will be halved. It will remain the same. It will be doubled. It will becomes four times. It will be halved. It will remain the same. It will be doubled. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Lenz's law. Fleming's left hand rule. Fleming's right hand rule. Ampere law. Lenz's law. Fleming's left hand rule. Fleming's right hand rule. Ampere law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 50Hz. 200Hz. 150Hz. 100Hz. 50Hz. 200Hz. 150Hz. 100Hz. ANSWER DOWNLOAD EXAMIANS APP
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