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ECE :: Power Electronics

  1. Ripple factor RF and form factor FF are related as

  2. A.
    RF = FF2 - 1
    B.
    RF = (FF2 - 1)0.5
    C.
    RF = FF - 1
    D.
    RF = (FF - 1)0.5

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  3. Modified Mc Murray full bridge inverter uses

  4. A.
    4 thyristors and 2 diodes
    B.
    4 thyristors and 4 diodes
    C.
    8 thyristors and 4 diodes
    D.
    8 thyristors and 8 diodes

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  5. Assertion (A): Gate triggering is the most commonly used method for triggering of an SCR.

    Reason (R): Even a small gate current is sufficient to turn on an SCR.

  6. A.
    Both A and R are correct and R is correct explanation of A
    B.
    Both A and R correct but R is not correct explanation of A
    C.
    A is correct but R is wrong
    D.
    A is wrong but R is correct

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