在直角坐标系\(xOy\)中,圆\(C\)的参数方程\(\begin{cases} & x=\cos \phi \\ & y=1+\sin \phi \end{cases}(\)其中\(φ\)为参数\().\)以\(O\)为极点,\(x\)轴的非负半轴为极轴建立极坐标系.
\((\)Ⅰ\()\)求曲线\(C\)的极坐标方程;
\((\)Ⅱ\()\)设直线\(l\)极坐标方程是\(\rho \sin (\theta +\dfrac{\pi }{3})=2\),射线\(OM\):\(\theta =\dfrac{\pi }{6}\)与圆\(C\)的交点为\(P\),与直线\(l\)的交点为\(Q\),求线段\(PQ\)的长.