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Chapter 25: The Electric Potential

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Pages: 687 - 713

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93 Questions for Chapter 25: The Electric Potential

  1. aCharge q1is distance rfrom a positive point charge Q. Charge q2=q13is distance2r from Q. What is the ratio U1U2of their potential energies due to their interactions with Q ?bChargeq1 is distances from the negative plate of a parallel-plate capacitor. Chargeq2=q13 is distance 2sfrom the negative plate. What is the ratioU1U2 of their potenti

    Found on Page 708
  2. The electric field strength is 20,000N/Cinside a parallel-plate capacitor with a 1.0mm spacing. An electron is released from rest at the negative plate. What is the electron’s speed when it reaches the positive plat

    Found on Page 709
  3. FIGURE EX 25.10 shows the potential energy of an electric dipole. Consider a dipole that oscillates between±60°.

    Found on Page 709
  4. FIGUREQ25.10 shows two points near a positive point charge.aWhat is the ratioV2V1 of the electric potentials? Explain.bWhat is the ratio E2E1of the el

    Found on Page 708
  5. What is the speed of a proton that has been accelerated from rest through a potential difference of -1000V ?

    Found on Page 709
  6. FIGUREQ25.11shows three points near two point charges. The charges have equal magnitudes. For each part, rank in order, from most positive to most negative, the potentials Vato Vc

    Found on Page 708
  7. ReproduceFIGUREQ25.12on your paper. Then draw a dot (or dots) on the figure to show the position (or positions) at which the electric potential is zer

    Found on Page 708
  8. What is the speed of an electron that has been accelerated from rest through a potential difference of 1000V?

    Found on Page 709
  9. What potential difference is needed to accelerate an electron from rest to a speed of 2.0×106m/s?

    Found on Page 709
  10. What potential difference is needed to accelerate a He+ion (charge +e,mass4u) from rest to a speed of2.0×106m/s

    Found on Page 709

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