MCQ
Two coils $X$ and $Y$ are placed in a circuit such that when a current changes $2A$ in coil $X,$ the magnetic flux changes by $0.4\,weber$ in $Y$. The value of mutual inductance of the coils....$H$
  • $0.2$
  • B
    $5$
  • C
    $0.8$
  • D
    $20$

Answer

Correct option: A.
$0.2$
a
$\phi = MI \Rightarrow d\phi  = M\,dI$

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