Magnetic flux in a straight wire to a cylinder

[goWlfpack]

Homework Statement

A long, straight wire carrying a current of 3.00 A is placed along the axis of a cylinder of radius 0.500 m and a length of 5.00 m. Determine the total magnetic flux through the cylinder.

Homework Equations

flux=BAcostheta

The Attempt at a Solution

i found the area of the cylinder first and i don't have any idea where to go from there. I am not really finding any helpful equations...

 

[borgwal]

Obviously, you have to calculate the magnetic field due to the current.

 

[goWlfpack]

Obviously, you have to calculate the magnetic field due to the current.

would i use B= (Moconstant)I/2pir??

 

[borgwal]

Yep.