We will learn that an electron moving in a constant electric potential v b (perpendicular to the electron's motion), moves in a circular path of radius r, given by the formula where m and e are the mass and charge of the electron, respectively. hand-fit graphing a former group of 103n students set the magnetic field on their apparatus to b = 1.154 plusminus 0.006 mt (1 t = 1 tesla = 1 kg/c s) and measured the path radius while varying the potential v: perform the error propagation formula for delta(r^2) in the space provided here. no numbers needed. plot r^2 (vertical axis) versus v (horizontal axis), including error bars on all points on your graph paper. when fitting data by hand, do not "connect the dots." doing so has no physical basis using a straight edge, "eyeball" the line that best fits the data. this line will yield the best values for the slope and intercept of your fit. remember that this line represents the trend of your data and might not pass through any data points. does the plot look linear?