The sensitivity of a galvanometer is $60 \mathrm{div} / \mathrm{A}$. When a shunt is used, its sensitivity becomes $10 \mathrm{div} / \mathrm{A}$. If the resistance of the galvanometer is $20 \Omega$, then the value of shunt used is

• Correct answer
  A

  $4 \Omega$
• B

  $5 \Omega$
• C

  $20 \Omega$
• D

  $2 \Omega$

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