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
350 W
450 W
800 W

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SSC JE Electrical 2018 with solution SET-1
The welding electric circuit is______

Never Earthed
None of these
Always Earthed
Through cables Only

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SSC JE Electrical 2018 with solution SET-1
In a synchronous Motor, the damping winding is generally used to

Provide starting torque
Prevent hunting and provide starting Torque
Reduces the eddy current
Reduces the Noise Level

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