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

800 W
1200 W
400 W
1600 W

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SSC JE Electrical 2019 with solution SET-1
 The output of the logic circuit given below represents the gate.

AND
NAND
NOR
OR

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SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M ≤ (L1L2)0.5
M = (L1 + L2)/2
M > (L1L2)0.5
M = (L1 − L2)/2

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

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

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

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

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