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The drawing shows a top view of a square box lying on a frictionles loor. Three forces, which are drawn to scale, a...
Chapter 19, Problem 16 GO The drawing shows a square, each side of which has a...
Chapter 19, Problem 16 GO The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive charges 41 and 42 are fixed at the corners of the square. Find the electric potential energy of a third charge 43 = -5.00 x 10-°C placed at corner A and then at corner B. B 91 = +1.50 x 10-C 92 = +4.00 x 10°C EPEA = EPEB Chapter 19, Problem 18 A charge...
BOX 5.1 The Polar Coordinate Basis Consider ordinary polar coordinates r and 0 (see figure 5.3)....
BOX 5.1 The Polar Coordinate Basis Consider ordinary polar coordinates r and 0 (see figure 5.3). Note that the distance between two points with the same r coordinate but separated by an infinitesimal step do in 0 is r do (by the definition of angle). So there are (at least) two ways to define a basis vector for the direction (which we define to be tangent to the r = constant curve): (1) we could define a basis vector es...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
Chapter 19, Problem 16 GO The drawing shows a square, each side of which has a length of L = 0.250 m. Two different positive charges 41 and 42 are fixed at the corners of the square. Find the electric potential energy of a third charge 43 = -5.00 x 10-°C placed at corner A and then at corner B. B 91 = +1.50 x 10-C 92 = +4.00 x 10°C EPEA = EPEB Chapter 19, Problem 18 A charge...
BOX 5.1 The Polar Coordinate Basis Consider ordinary polar coordinates r and 0 (see figure 5.3). Note that the distance between two points with the same r coordinate but separated by an infinitesimal step do in 0 is r do (by the definition of angle). So there are (at least) two ways to define a basis vector for the direction (which we define to be tangent to the r = constant curve): (1) we could define a basis vector es...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
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