Within the green dashed circle shown in the figure below, the magnetic field changes with time according to the expression B = 6.00t3 - 3.002² + 0.800, where B is in teslas, t is in seconds, and R = 2.85 cm. X x x X x * x x x x2 x x x x7x x : P | x x x 6** * R x x x x * x x x x × x x x x x x Bin (a) When t = 2.00 s, calculate the magnitude of the force exerted on an electron located at point P,, which is at a distance r, = 5.70 cm from the center of the circular field region. (b) When t = 2.00 s, calculate the direction of the force exerted on an electron located at point P,, which is at a distance r, = 5.70 cm from the center of the circular field region. O tangent to the electric field line passing through point P, and clockwise O tangent to the electric field line passing through point P, and counterclockwise O The magnitude is zero. (Cc) At what instant is this force equal to zero? (Consider the time after t = 0 s.) X x x X

Within the green dashed circle shown in the figure below, the magnetic field changes with time according to the expression B = 6.00t3 - 3.002² + 0.800, where B is in teslas, t is in seconds, and R = 2.85 cm. X x x X x * x x x x2 x x x x7x x : P | x x x 6** * R x x x x * x x x x × x x x x x x Bin (a) When t = 2.00 s, calculate the magnitude of the force exerted on an electron located at point P,, which is at a distance r, = 5.70 cm from the center of the circular field region. (b) When t = 2.00 s, calculate the direction of the force exerted on an electron located at point P,, which is at a distance r, = 5.70 cm from the center of the circular field region. O tangent to the electric field line passing through point P, and clockwise O tangent to the electric field line passing through point P, and counterclockwise O The magnitude is zero. (Cc) At what instant is this force equal to zero? (Consider the time after t = 0 s.) X x x X

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 91CP: A nonconducting hard rubber circular disk of radius R is painted with a uniform surface charge...

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