SSC JE Electrical 2019 with solution SET-1
 What is the reason behind using a centrifugal switch in a single-phase induction motor?

To cut-off the starting winding at an appropriate instant
To protect the motor from overloading
To out in the capacitor during running conditions
To improve the starting performance of the motor

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SSC JE Electrical 2019 with solution SET-1
 If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is

1600 W
400 W
1200 W
800 W

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SSC JE Electrical 2019 with solution SET-1
 The average value of a sinusoidal wave is:

√2 × maximum value
0.637 × maximum value
2 × maximum value
0.5 × maximum value

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