A coil of circular cross-section having $1000$ turns and $4 {\mathrm{cm}}^2$ face area is placed with its axis parallel to a magnetic field which decreases by ${10}^{-2} \mathrm{Wb} {\mathrm{m}}^{-2}$ in $0.01 \mathrm{s}$. The e.m.f. induced in the coil is :

• A

  $0.4 \mathrm{mV}$
• B

  $4 \mathrm{mV}$
• C

  $200 \mathrm{mV}$
• Correct answer
  D

  $400 \mathrm{mV}$

Hence, the correct answer is option: 'D'.