The line T in the following figure is permanently connected to the ground.…

2007

The line T in the following figure is permanently connected to the ground.

image.png

Which of the following inputs (X1 X2 X3 X4) will detect the fault ?

Answer: D. None of these

  1. A.

    0000

  2. B.

    0111

  3. C.

    1111

  4. D.

    None of these

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Correct answer: D

image.png

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