When the current in a coil changes from $\text{5 A}$ to $\text{2 A}$ in $\text{0}\text{.1 s}$, an average voltage of $\text{50}\text{V}$ is produced. The self-inductance of the coil is

• Correct answer
  A

  $\text{1}\text{.67 H}$
• B

  $\text{6 H}$
• C

  $\text{3 H}$
• D

  $\text{0}\text{.67 H}$

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