(8%) Problem 8: Two very long, parallel wires are separated by d= 0.045 m. The first wire carries a current of I) = 0.65 A. The second wire carries a current of 12 - 0.45 A. K d Otheexpertta.com 4 20% Part (a) Express the magnitude of the force between the wires per unit length, f, in terms of I1, I2, and d. * 20% Part (b) Calculate the numerical value of fin N/m. f= 2.040 X Attempts Remain 20% Part (c) Is the force repulsive or attractive? A 20% Part (d) Express the minimal work per unit length needed to separate the two wires from d to 2d. D * 20% Part (e) Calculate the numerical value of w in J/m. Grade Summary W 0.145 Deductions 3% Potential 97%