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Teeth are modified ........... which are...

Teeth are modified ........... which are ........... directed 

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placoid scales, backwardly
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Knowledge Check

  • If we consider the phasor if I in positive X-direction for an A.C. circuit which has only inductor, then the phasor of V is in ........direction .

    A
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    B
    positive Y
    C
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    D
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