已知椭圆\(C\)的中心在原点,焦点在\(x\)轴上,左右焦点分别为\(F_{1}\),\(F_{2}\),且\(|F_{1}F_{2}|=2\),点\((1, \dfrac {3}{2})\)在椭圆\(C\)上.
\((\)Ⅰ\()\)求椭圆\(C\)的方程;
\((\)Ⅱ\()\)过\(F_{1}\)的直线\(l\)与椭圆\(C\)相交于\(A\),\(B\)两点,且\(\triangle AF_{2}B\)的面积为\( \dfrac {12 \sqrt {2}}{7}\),求以\(F_{2}\)为圆心且与直线\(l\)相切的圆的方程.