An airplane of wingspan 50 m is traveling at 1800 kmph in a region where the earth's magnetic field is $4.0 \times 10^{-4} \mathrm{~T}$. The maximum voltage that can possibly be developed between the ends of the wing is

• Correct answer
  A

  10 V
• B

  0 V
• C

  2 V
• D

  5 V

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