The inductance of a coil is $60\mathrm{\mu H}$. A current in this coil increases from 1.0 A to 1.5 A in 0.1 second. The magnitude of the induced e.m.f. is

• A

  $60\times {10}^{-6}\mathrm{V}$

• B

  $300\times {10}^{-4}\mathrm{V}$

• C

  $30\times {10}^{-4}\mathrm{V}$

• D

  $3\times {10}^{-4}\mathrm{V}$