The Oscilloscope and AC Circuitry: Oscilloscope and AC Circuitry Pre Lab: We Show you How to get them all including the last part.
Part 1:
Part 2:
Part 3:
To get the phase angle use the equation below.
[(# boxes bw Blue and red*Units of Dial)/Period]* 360 deg=Phase angle
[(1.4 Boxes * 0.5 ms/box) / 3.35ms] * 360 deg= 75 deg
this was correct but lon-capa made it 79 deg so I guess round your answer up
As for whether it leads or lags, take a guess you have a 50/50 chance of getting that part right that is what we did.
Part 4: Ours looks like a fucking sideways pretzel But we got the answer!!!!!
http://ibiblio.org/e-notes/Lis/Lissa.htm
If this worked for you leave a comment saying Hell Yeah