Question

A point charge that is exactly q -9.2 C is at the origin. In this problem, assume that the Coulomb constant k = 8.99 x 10' N m-/C- exactly. (a) Find the potential V on the x axis at x = 3.00m and at x = 3.01 m. In this part, enter your answers to exactly 6 signfificant figures. At x3.00 m kV Enter [1.25 points] 0 attempt(s) made (maximum allowed for credit = 5) (after that, multiply credit by 0.5 up to 10 attempts] Number of significant digits required = 6 Atx3.01 m Enter kV [1.25 points]0 attempt(s) made (maximum allowed for credit = 5) after that, multiply credit by 0.5 up to 10 attempts] Number of significant digits required = 6 (b) Does the potential increase or decrease as x increases? 1. V increases with x V does not depend on x 2. V decreases with x 3. Enter [1.25 points] 0 attempt(s) made (maximum allowed for credit = 2) Compute -A VIA x, where A V is the change in potential from x = 3.00 m tox = 3.01 m and Ax= 0.01 m. In this part, enter your answer to exactly 2 significant figures. kV/m Enter [1.25 points] 0 attempt(s) made (maximum allowed for credit = 5) after that, multiply credit by 0.5 up to 10 attempts] Number of significant digits required = 2 (c) Find the electric field at x 3.00 m. In this part, enter your answer to exactly 2 significant figures. kV/m to the right Enter [1.25 points] 0 attempt(s) made (maximum allowed for credit = 5) [after that, multiply credit by 0.5 up to 10 attempts] Number of significant digits required 2 Compare its magnitude with the value of -A V/A xyou found in part (b) 1. in agreement with (b) 2. bigger than (b) 3. less than (b) Enter [1.25 points] 0 attempt(s) made (maximum allowed for credit = 2) (d) Find the potential at the point x = 3.00 m, y 0.01 m. In this part, enter your answer to exactly 4 significant figures. Enter kV [1.25 points] 0 attempt(s) made (maximum allowed for credit = 5) [after that, multiply credit by 0.5 up to 10 attempts] Number of significant digits required = 4 and compare it with the potential, expressed to 4 significant figures, found for x = 3.00 m in (a). 1. in agreement with (a) 2. less than (a) 3. bigger than (a)

Answer 1

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