y b a The figure shows a cross secti on of a long cylindrical conductor of Radius a = 10 cm containing a long cylindrical hole of Radius b = a/2. The axes of the cylinder and hole are parallel and are a distance a/2 apart. The conductor carries a current I=100A that is uniformly distributed over the conducting cross-sectional area and flowing in the positive z-directi on (out of the page). If point P has coordinates (b,b), what is the magnetic field B at the P in terms of unit vectors. H, = 4nx10-7(T.m/A) a) Bp = 6.67x10-5 (T)(i) b) B, = 6.67x10-5 (T)(-i) c) B, = 4.44x10-5 (T)(-i) %3D d) B, = 4.44x10-5 (T)(i) e) B, = 3.33x10-5 (T)(-i)

y b a The figure shows a cross secti on of a long cylindrical conductor of Radius a = 10 cm containing a long cylindrical hole of Radius b = a/2. The axes of the cylinder and hole are parallel and are a distance a/2 apart. The conductor carries a current I=100A that is uniformly distributed over the conducting cross-sectional area and flowing in the positive z-directi on (out of the page). If point P has coordinates (b,b), what is the magnetic field B at the P in terms of unit vectors. H, = 4nx10-7(T.m/A) a) Bp = 6.67x10-5 (T)(i) b) B, = 6.67x10-5 (T)(-i) c) B, = 4.44x10-5 (T)(-i) %3D d) B, = 4.44x10-5 (T)(i) e) B, = 3.33x10-5 (T)(-i)