Electrical Machines Eddy current loss will depends on All of these Thickness Flux density Frequency All of these Thickness Flux density Frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a short circuit test on a transformer is performed at 25 V, 50 Hz, the drawn current is I1. If the test is performed by 25 V and 25 Hz and power drawn current is I2, then I1 = I2 I1 > I2 None of these I1 < I2 I1 = I2 I1 > I2 None of these I1 < I2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. power factor. speed. air gap flux. magnetizing current. power factor. speed. air gap flux. magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 18.25%. 15.30%. 16.67%. 14.28%. 18.25%. 15.30%. 16.67%. 14.28%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Winding conductors of an electrical power transformer are mainly insulated by rubber insulation. wooden insulation. paper insulation. cotton insulation. rubber insulation. wooden insulation. paper insulation. cotton insulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the e.m.f. generated by a 4 pole lap connected DC Generator rotating at 1500 r.p.m.? Its flux per pole is 0.4 mWb and total no of armature conductors is 1000. 10 volts. 30 volts. 20 volts. 40 volts. 10 volts. 30 volts. 20 volts. 40 volts. ANSWER DOWNLOAD EXAMIANS APP
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