How Do You Incorporate Mass into the Biot-Savart Law Formula?

[kodiac9]

Homework Statement

ok i have a lab w a magnetic balance (where u have weight on one side and electrical magnetism on the other) and its using a law :

F=(u x i² x l)/(2 x (pi) x d)

were i is intensity, l is length of hte conductors, separated by a distance d, u is 4π×10-7 kg·m·A-2·s-2

this is a derivative of biot savart law

now they are asking me to transform the formula to have I²/m (m is mass

how do i do this?

oh and my data is

1 length of string is 5cm long and has a volumic mass of 0.14567 g/m

# of 5 cm lenghts / i
1 2.48
2 4.39
3 4.92
4 5.66
5 5.88
6 6.81
7 7.41
8 7.87

Homework Equations

F=(u x i² x l)/(2 x (pi) x d)

The Attempt at a Solution

no idea

 

[kodiac9]

? anyone?..