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Chapter 26: Potential and Field

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Pages: 714 - 741

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91 Questions for Chapter 26: Potential and Field

  1. Two 10-cm-diameter electrodes 0.50 cm apart form a parallelplate capacitor. The electrodes are attached by metal wires to the terminals of a 15 V battery. What are the charge on each electrode, the electric field strength inside the capacitor, and the potential difference between the electrodes a. While the capacitor is attached to the battery? b. After insulating handles are used to pull the electrodes away from each other until they are 1.0 cm apart? The electrodes remain connected to the battery during this process. c. After the original electrodes (not the modified electrodes of part b) are expanded until they are 20 cm in diameter while remaining connected to the battery?

    Found on Page 714
  2. Figure Q26.1 shows the x-component of E→as a function of x. Draw a graph of Vversusxin this same region of space. Let V=0Vatx=0mand include an appropriate vert

    Found on Page 736
  3. What is the potential difference between xi=10cm and xf=30cm in the uniform electric field Ex=1000V/m

    Found on Page 737
  4. Determine the magnitude and direction of the electric field at points 1 and 2 in Figure EX26.10.

    Found on Page 737
  5. Figure Q26.10 shows a 3Vbattery with metal wires attached to each end. What are the potential differences ∆V12=V2-V1,∆V23=V3-V2,∆V34=V4-V3,and∆V41=V1-V4

    Found on Page 737
  6. Figure EX26.11 is a graph ofVversusx. Draw the corresponding graph ofExversusx

    Found on Page 738
  7. The parallel-plate capacitor in Figure Q26.11 is connected to a battery having potential difference ∆Vbat. Without breaking any of the connections, insulating handles are used to increase the plate separation to 2d.

    Found on Page 737
  8. Rank in order, from largest to smallest, the potential differences (∆VC)1to(∆VC)4of the four capacitors in Figure Q26.12. Explai

    Found on Page 737
  9. Figure EX26.12 is a graph of Vversusx. Draw the corresponding graph of Exversusx.

    Found on Page 738
  10. The electric potential in a region of uniform electric field is-1000V at x=-1.0m and +1000Vatx=+1.0m. What is Ex

    Found on Page 738

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