- #1

Flop880

- 4

- 0

## Homework Statement

Problem is attached

## Homework Equations

A formula sheet is also attached

## The Attempt at a Solution

flux=[itex]\int[/itex]B dA from .31m to .82

B=u I(enclosed)/2(pi)(d)

d=x

dA=dx L

so ∫ (u)(I)(L)dx / 2(pi)(x) from .31m to .82m remember x=d in the pic. My answer is 3.9687e-7 and its wrong

integral came out to be (u)(I)(L)/2pi (ln(.82) - ln(.31))

u=4(pi)e-7

I=4A