In a particular region there is a uniform current density of 15 A m2 in the positive z direction What is the value of B d s when that line integral is calculated along the three straight line segments from (x, y, z) coordinates (4d, 0, 0) to0) to (4d, 0, 0), where d 20 cm ...

In a particular region there is a uniform current density of 15 A/m2 in the positive z

Question:

In a particular region there is a uniform current density of 15 A/m2 in the positive z direction. What is the value of ф B ∙ d s when that line integral is calculated along the three straight-line segments from (x, y, z) coordinates (4d, 0, 0) to0) to (4d, 0, 0), where d = 20 cm?