Question

Problem 4a

Answer 1

Given information

Two parallel wires are given.

Diameter of wires  

Distance between the two wires  

Current carried by wires  

Step-by-step explanation

Step 1.

The left current creates a field on the X-axis which further points in the y-direction and the right current creates a field on the x-axis pointing in the negative direction of the Y-axis. 

So, the distance from the left wire to a point on the positive x-axis is x, and from the right wire to the point is d-x. 

The magnetic field along X-axis can be written as