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Unformatted text preview: Physics 210 Week 2 Multiple Choice Practice Problems Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. A 40- C charge is positioned on the x axis at x = 4.0 cm. Where should a 60- C charge be placed to produce a net electric field of zero at the origin? a. 5.3 cm b. 5.7 cm c. 4.9 cm d. 6.0 cm e. +6.0 cm ____ 2. A charge of 80 nC is uniformly distributed along the x axis from x = 0 to x = 2.0 m. Determine the magnitude of the electric field at a point on the x axis with x = 8.0 m. a. 30 N/C b. 15 N/C c. 48 N/C d. 90 N/C e. 60 N/C ____ 3. A charge of 25 nC is uniformly distributed along a circular arc (radius = 2.0 m) that is subtended by a 90- degree angle. What is the magnitude of the electric field at the center of the circle along which the arc lies? a. 81 N/C b. 61 N/C c. 71 N/C d. 51 N/C e. 25 N/C ____ 4. A 16-nC charge is distributed uniformly along the x axis from x = 0 to x = 4 m. Which of the following integrals is correct for the magnitude (in N/C) of the electric field at x = +10 m on the x axis?...
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