18.29. Set Up:Example 18.4 shows that where yis the distance from the negative plate. at thenegative plate. For Solve: (a)So for for for forand for The equipotential surfaces are drawn in Figure 18.29.Figure 18.29(b)Yes, they are separated by 5 cm.(c)The equipotential surfaces are flat sheets parallel to the plates.Reflect:The electric field lines are straight lines perpendicular to the plates, so are perpendicular to the equipoten-tial surfaces, as they must be. The electric field is uniform so the equipotential lines of constant potential differenceare equally spaced.18.30. Set Up:For a point charge,Solve: (a)at at at at and at The equipotential surfaces are sketched in Figure 18.30.Figure 18.30(b)These equipotential surfaces are not equally spaced in distance. The and surfaces arefarther apart than the and surfaces. The equipotential surfaces are closer together where
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This note was uploaded on 03/06/2009 for the course PHYS 114 taught by Professor Shoberg during the Spring '07 term at Pittsburg State Uiversity.