A copper wire is 6.00 m long and has a cross-sectional area of 2.00 10^-4 m2. This wire forms a one turn loop in the shape of a square and is then connected to a battery that applies a potential difference of 0.300 V. If the loop is placed in a uniform magnetic field of magnitude 0.500 T, what is the maximum torque that can act on it? The resistivity of copper is 1.7 multiplied by 10^-8 · m.