$[0/0\mathrm{.}71$ Points$]$

OSUNIPHYS$130\mathrm{.}1.$WA$\mathrm{.}001.$

A long straight wire carries a current of $7\mathrm{.}70$ A as shown in the figure. The distance $r_1=10\mathrm{.}0cm,r_2=20\mathrm{.}0cm,$ and $l=16\mathrm{.}0cm.$ Determine the magnitude of the magnetic flux through the area shown.

What is the definition of magnetic flux? Can you write an expression for the magnetic field due to a long straight conducting wire at some distance from the wire? Since the magnetic field strength varies with distance from the wire, see if you can set up an integral to determine the flux through the area of interest. Check your integration and algebra. Wb

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$8.[-10\mathrm{.}71$ Points$]$

OSUNIPHYS$130\mathrm{.}1.$P$\mathrm{.}027.$