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Chapter 24: Q65P (page 714)
What is the excess charge on a conducting sphere of radius if the potential of the sphere is and at infinity ?
The excess charge on a conducting sphere is .
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In Fig. 24-33, a particle is to be released at rest at point A and then is to be accelerated directly through point B by an electric field. The potential difference between points A and B is 100v . Which point should be at higher electric potential if the particle is (a) an electron, (b) a proton, and (c) an alpha particle (a nucleus of two protons and two neutrons)? (d) Rank the kinetic energies of the particles at point B, greatest first.
The magnitude of an electric field depends on the radial distance r according to, where is a constant with the unit volt鈥揷ubic meter. As a multiple of , what is the magnitude of the electric potential difference betweenand?
A particle of chargeis released from rest at the pointon an x-axis. The particle begins to move due to the presence of a charge Qthat remains fixed at the origin. What is the kinetic energy of the particle at the instant it has moved 40 cmif (a)and (b)?
What are (a) the charge and (b) the charge density on the surface of a conducting sphere of radius 0.15 mwhose potential is 200 V(with V = 0at infinity)?
Figure 24-29 shows four arrangements of charged particles, all the same distance from the origin. Rank the situations according to the net electric potential at the origin, most positive first. Take the potential to be zero at infinity.
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