Sensitivity of moving coil galvanometer is \(s\). If a shunt of \(\left ( \dfrac {1}{8} \right )^{th}\) of the resistance of galvanometer is connected to moving coil galvanometer, its sensitivity becomes:
1
\(\dfrac {s}{3}\)
2
\(\dfrac {s}{6}\)
3
\(\dfrac {s}{9}\)
4
\(\dfrac {s}{12}\)