Question

Pre-Lab for Experiment 03 A: A magnetic field in a solenoid is parallel to the axis of the solenoid. The current along the end of the teeter-totter is perpendicular to the magnetic field and therefore produced a force of F = 1, L,B, where 1, is the current in the teeter-totter and L, is the length of the conductor at the end of the teeter-totter. When well balance, weights on the other end of the teeter-totter produce a downward force mg. Use this information to create an equation that solves for B Show the equation for B. B: A solenoid of length Ls with N turns of wire carrying a current I, produces a magnetic field which is given by B -po (NIs)/(L). Predict what the slope of a plot of B versus Is should be equal to. Show the relationship between B versus

Answer 1

Pre-Lab Experiment

1) In the equilibrium, FB = Fg

If*Lf*B = m*g

B = m*g/(If*Lf) <<<<<<-----Answer

2)

given

B = mue*N*Is/Ls

B = (mue*N/Ls)*Is

If B is taken on y-axis and Is is taken on x- axis, we get straight line.

Because, the equation looks like, y = m*x

y ---> B
x --> Is
m = (mue*N/Ls)

the slope of the staright line, m = (mue*N/Ls)