I provided what's given below the question. I set up the equation in the bottom. however, how do i find r hat and sin theta so that I can set up the equation to find current (I).

C) Consider the uniform magnetic field being produced at the center of a 0.03 m in diameter coiled wire , Find the value and direction of the current in the wire that generates the magnetic field of 0.045 7 at its center . B = km Il x r sine Equation to use * 2 Km = 1x 107 diameter= 0.03m - radius= 0:015m B= 0. OUS T ar = 0. 015 m 2= 21Tr - 2TT ( 0.015) Cic In= 0. 09 4 24 77 7 96 1 m 0 . 0 4 5 = ( 1 x 10 )I (0. 094 ) x rsing ( 0. 015 ) 2