Question

Part I: Force Versus Wire Length

Based on table 1, draw a length (x-axis) versus Force graph. Do linear fit and display equation.   Length in meters and forces in Newtons

Slope=IB, plug in I (I=2.0 A ), then calculate B=?

           

Part I: Force Versus Wire Length

Fixed current I=2 A, with all 6 magnets

Table1--- with I=0,   Mass=0

Samples	Sample Length (mm)	Mass (gram)	Force (N) =mg (when g =9.8 m/s^2, m must be in kg)
1-----SF40	12 mm = 0.012 m	0.19 g
2------SF37	22 mm = 0.022 m	0.31 g
3------SF38	32 mm = 0.032 m	0.45 g
4------SF39	42 mm = 0.042 m	0.57 g
5------SF41	64 mm = 0.064 m	0.87 g
6------SF42	84 mm = 0.084 m	1.18 g

Answer 1