- #1

Abdulwahab Hajar

- 56

- 2

## Homework Statement

Determine the mutual inductance between a very long, straight wire and a conducting equilateral triangular loop

## Homework Equations

I know how to do it but I'm stuck at the step of finding the total inductance through the triange.

## The Attempt at a Solution

we know that the magnetic field due to an infinitely long wire is

B =

*µI/2πr*in order to find the magnetic flux through the triangle we need to find Φ = ∫B.dA

we have B but what would dA be in this case

the book says it's (2/√3) * (r - d) *dr

why is that so?

thank you