Electrical Machines Hopkinss test in DC motor is conducted at ? None of these. Low load. No load. Full load. None of these. Low load. No load. Full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance and leakage reactance. armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance only. armature resistance and leakage reactance. armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the power factor the level of the voltage the power level the frequency the power factor the level of the voltage the power level the frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer oil is used as an insulator. inert medium. both A and B. a coolant. an insulator. inert medium. both A and B. a coolant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for simple wave-winding ? PZL/4Sp² PZL/4S PZL/4Sa² PZL/ 4Sa PZL/4Sp² PZL/4S PZL/4Sa² PZL/ 4Sa ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Eight times. Doubled. Remains same. Four times. Eight times. Doubled. Remains same. Four times. ANSWER DOWNLOAD EXAMIANS APP
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