Mutual inductance between straight line cable & square shape Frame

[aliz_khanz]

Homework Statement

Calculate mutual-inductance between straight line cable and square shape frame, as shown on
picture.

Homework Equations

I am not sure which equation will be used here because as far as my knowledge goes , mutual inductance should be concerned with turns in coils but in this case it is a straight line

The Attempt at a Solution

I would love to but I don't have a clue

 

[TSny]

You can think of the straight cable as infinitely long and part of a single closed loop where the rest of the loop is out at infinity.

Try applying the definition of mutual inductance to this situation.

 

[aliz_khanz]

Thanks a lot ... at the end your advice worked out fine .. :)