Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Doubled. Remains same. Four times. Eight times. Doubled. Remains same. Four times. Eight times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. inversely. has no relation. directly. none of these. inversely. has no relation. directly. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wattage rating of a ceiling fan motor will be 50 - 150 W. 10 - 20 W. 200 - 250 W. 250 - 500 W. 50 - 150 W. 10 - 20 W. 200 - 250 W. 250 - 500 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determined by Lenz's law. Fleming's left hand rule. Ampere's law. Fleming's right hand rule. Lenz's law. Fleming's left hand rule. Ampere's law. Fleming's right hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum efficiency will occur, when copper loss is_______to iron loss? less than any of the above greater than equal to less than any of the above greater than equal to ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If any two leads from slip rings are interchanged in a 3 - Φ induction motor, the motor will get damaged. continue running in the same direction as before. not run. run in a direction opposite to previous one. get damaged. continue running in the same direction as before. not run. run in a direction opposite to previous one. ANSWER DOWNLOAD EXAMIANS APP
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