Biot-Savart Law: Find formula for B at general pt (x, y, z)

[plexus0208]

Homework Statement

See attachment for Problem Statement.

Homework Equations

The Attempt at a Solution

Can anyone help me start this problem, or clarify what is being asked? I have no idea where to begin.

 

[Andrew Mason]

Homework Statement

See attachment for Problem Statement.
View attachment 21583

Homework Equations

The Attempt at a Solution

Can anyone help me start this problem, or clarify what is being asked? I have no idea where to begin.

The first part is simply asking you to evaluate B in terms of x,y,z. This involves expressing $\hat{k} \times \vec r$ and r in terms of x, y and z.

In the second part the key is to determine when $\hat{k} \times \hat r$ will be maximum (cross product of the unit vectors in the k direction and the r direction).

AM