SSC JE Electrical 2018 with solution SET-1
 A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

300 W
800 W
450 W
350 W

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SSC JE Electrical 2018 with solution SET-1
 A hysteresis Motor

Is a constant speed motor
Is not a self-starting motor
Need DC excitation
Can not be run in reverse speed

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SSC JE Electrical 2018 with solution SET-1
 In a Hysteresis Motor, the rotor must have

None of these
Retentivity
Resistivity
Susceptibility

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