1. The problem statement, all variables and given/known data Two long straight wires are shown. Wire 1 has a current of 25A and lies 0.05 m away from point O. Wire 2 carries a current of 110 A and sits a distance of 0.25m away from point O as shown. (i) What is the direction and magnitude of the magnetic field at point O due ONLY to WIRE 1. (ii) What is the direction (measured as an angle from the x-axis) of the magnetic field at point O from wire 2? (iii) What is the magnitude of the magnetic field at point O due ONLY to WIRE 2? (iv) What is the magnitude of the total magnetic field? 2. Relevant equations B = (4pix10-7)I/(2pi*r) 3. The attempt at a solution (i) Using the equation for a long straight wire I get B = 1.0 x 10-4 I'm a little confused on the direction. I'm not sure how to compute this. Do I need to use the right hand rule or is there some way to find an exact angle? (ii) As in (i) im confused on how to find this. I would guess 40 degrees. (iii) Using the equation for a long straight wire i get B = 8.8 x 10-5 (iv) Here i'm assuming I need to use the angle I found above to figure this out.