- #1
berg1188
- 4
- 0
Homework Statement
Express:
in terms of R, L(t), l, and φ
Homework Equations
Law of Sines and Cosines
The Attempt at a Solution
I have used:
c^2=a^2+b^2-2ab*cosφ which resulted in
r^2=R^2+(L(t)-l)^2-2*R*(L(t)-l)*cosφ
and used the law of sines to get
R*sinφ=r*sinθ
r=(R*sinφ)/sinθ
I'm struggling figuring out where to go from here. I know I'm looking to replace the dl x r portion of the Biot-Savart law. If anyone could help prod me in the right direction I'd appreciate it. Thanks