Chapter 16: Q48P (page 626)
If throughout a particular region of space the potential can be expressed as , what are the vector components of the electric field at location ?
Short Answer
The vector component of electric field at location is .
Chapter 16: Q48P (page 626)
If throughout a particular region of space the potential can be expressed as , what are the vector components of the electric field at location ?
The vector component of electric field at location is .
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A thin spherical shell of radius \({R_1}\)made of plastic carries a uniformly distributed negative charge \( - {Q_1}\). A thin spherical shell of radius \({R_2}\)made of glass carries a uniformly distributed positive charge \( + {Q_2}\). The distance between centers is \(L\), as shown in Figure 16.80. (a) Find the potential difference \({V_B} - {V_A}\). Location A is at the center of the glass sphere, and location \(B\) is just outside the glass sphere. (b) Find the potential difference \({V_C} - {V_B}\). Location \(B\) is just outside the glass sphere, and location \(C\) is a distance d to the right of \(B\). (c) Suppose the glass shell is replaced by a solid metal sphere with radius R2 carrying charge \( + {Q_2}\). Would the magnitude of the potential difference \({V_B} - {V_A}\) be greater than, less than, or the same as it was with the glass shell in place? Explain briefly, including an appropriate physics diagram.
You travel along a path from location A to location B, moving in a direction perpendicular to the direction of the net electric field in that region. What is true of the potential difference
Question: The energy density inside a certain capacitor is . What is the magnitude of electric field inside the capacitor? What is the energy density associated with an electric field of (large enough to initiate a spark)?
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?
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