$A$ wire of length $10 \, cm$ translates in a direction making an angle of $60^\circ$ with its length. The plane of motion is perpendicular to a uniform magnetic field of $1.0 \, T$ that exists in the space. Find the $emf$ induced between the ends of the rod if the speed of translation is $20 \, cm/s.$

• A
  $17 \times 10^{-3} \, V$
• B
  $27 \times 10^{-3} \, V$
• C
  $7 \times 10^{-3} \, V$
• D
  $57 \times 10^{-3} \, V$