MCQ
A coil having an area $A_0$ is placed in a magnetic field which changes from $B_0$ to $4B_0$ in a time interval t. The e.m.f. induced in the coil will be
  • $\frac{3 A_0 B_0}{t}$
  • B
    $\frac{4 A_0 B_0}{t}$
  • C
    $\frac{3 B_0}{A_0 t}$
  • D
    $\frac{4 B_0}{A_0 t}$

Answer

Correct option: A.
$\frac{3 A_0 B_0}{t}$
(a) $\frac{3 A_0 B_0}{t}$

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