Question

KElectric Potential and Capacitance Problem 18.67 Part B From your plot in Part A, determine the magnitude of the charge Express your answer in nanocoulombs to two significant figures. nC Submit Part C From your plot in Part A, determine the position of the charge Express your answer in meters to two significant figures ΑΣΦ

I need help with parts b and c. The second two pictures are for reference.

Answer 1

Electric potential v = 1/4 pi epsilonvariant_0 q/(x - x_0) 1/v = 4 pi epsilonvariant_0 /q (x - x_0) 1/v = 4 pi epsilonvariant_0/q x - 4 pi epsilonvariant_0/q x_0 slope of the plot = 4 pi epsilonvariant_0/q slope = 0.055 - 0.010/2 = 0.0225 q = 4 pi epsilonvariant_0/slope = 1/9 times 10^9 times 0.0225 charge q = 4.93 times 10^-9 c \r\n Intercept of the graph y_0 = 0.010 = -4 pi epsilonvariant_0/q x_0 position of the charge x_0 = -0.010 times q/4 pi epsilonvariant_0 = -0.010 times 9 times 10^9 times 4.93 times 10^-9 x_0 = -0.44m