1. The problem statement, all variables and given/known data What is the magnitude of the force per meter of length on a straight wire carrying a 6.70-A current when perpendicular to a 0.89-T uniform magnetic field? What if the angle between the wire and field is 45.0°? I know how to do the whole thing, I just can't get my answer right. I don't know if I am working the equation out right. 2. Relevant equations F=IlBsin[tex]\theta[/tex] 3. The attempt at a solution Using the above equation. For part A I know that I use it for 90 degrees at 1m F=(6.70A)(0.89T)sin90=5.9N/m Part B is the one I can't get the answer to. F=(6.07A)(0.89T)sin45 **I haven't had a trig class or a physics class for about 7 years so I don't remember how to exactly use sin. For Part A I got the correct answer because I just didn't use the sin. I just took the (6.70A*0.89T). Can someone explain how to use sin or how to get the right answer. I got 5.07 N/m but that is not correct. Thanks in advance to everyone that helps.