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Chapter 16: Q20P (page 663)
What is the kinetic energy of a proton that is traveling at a speed of ?
The kinetic energy of a proton is .
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Question: In Chapter 6 we saw that the electric potential energy of a system of two particles is given by the equation .
(a) What is the electric potential energy of two protons separated by a distance of ? (b) What is the electric potential energy of a proton and an electron separated by the same distance?
An electron is initially at rest. It is moved from a location from a proton to a location from the proton. What is the change in electric potential energy of the system of proton and electron?
A dipole is centered at the origin, with its axis along the y axis, so that at locations on the y axis, the electric field due to the dipole is given by
The charges making up the dipole are and , and the dipole separation is (Figure 16.82). What is the potential difference along a path starting at location and ending at location ?
An isolated large plate capacitor (not connected to anything) originally has a potential difference of 1000 V with an air gap of 2 mm. Then a plastic slab 1 mm thick, with dielectric constant 5, is inserted in the middle of the air gap as shown in figure 16.96. Calculate the following potential differences and explain your work.
In the region of space depicted in Figure 16.87 there are several stationary charged objects that are not shown in the diagram. Along a path you measure the following potential differences: ; ; . What is the potential difference ?
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