Question

please help with part b i have attached the graph. please be sure to explain

Force vs. Current 12 10 8 6 4 2 0 0 0.5 1 1.5 2

**part d

what more information do you need?

Answer 1

d)

The force on a current carrying conductor due to a magnetic field depends on four factors:

a) strength of magnetic field itself (B)

b) length of segment of wire through which current is flowing (L)

c) amount of current flowing through that segment.(I)

d) the angle between current length element and magnetic field. (sin(theta))

This gives, F = B*I*L*sin(theta)

Here, theta can be set to 90 for the simplicity of computation. Which gives force on segment as, F = BIL

Now, the plot is between F vs I, which implies that the slope of the curve is B*L.

Since, the value of L is not provided, Lets assume it to be 1.

So, the slope of the curve will give B, i.e. the magnetic field strength.

For computing B:

Taking 1st two points from curve or one can use the best fit equation and find m (slope):

$B = \frac{3.332-1.666}{0.5-0.25}$

$B = \frac{1.666}{0.25}$