Two similar galvanometers are covered into an ammeter and a milliammeter. The shunt resistance of ammeter as compared to the shunt resistance of milliammeter will be

• A

  Zero
• B

  More
• Correct answer
  C

  Less
• D

  Equal

Solution

$\left(i-i_g\right) s=i_g G$ $\begin{aligned} & \text { is }=\mathrm{ig}(\mathrm{~h}+\mathrm{s}) \\ & \mathrm{i}=\mathrm{ig}\left(\frac{\mathrm{~g}}{\mathrm{~s}}+1\right) \end{aligned}$ More 'S', less i So milliammeter will have more shunt resistance.

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