An electric dipole consists of two opposite charges of magnitude `q = 1xx10^(-6)C` separated by 2.0cm. The dipole is placed in an external field of `1xx10^(5) NC^(-1)`. What maximum torque does the field exert on the dipole ? How much work must an external agent do to rurn the dipole end for end, starting from position of aligment `(theta = 0^(@))` ?