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Chapter 23: Q. 41- Excercises And Problems (page 655)
is a cross section of two infinite lines of charge that extend out of the page. Both have linear charge density . Find an expression for the electric field strength at height above the midpoint between the lines.
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What are the strength and direction of the electric field at the position indicated by the dot in FIGURESpecify the direction as an angle above or below horizontal.
A ring of radius has total charge.
At what distance along the -axis is the electric field strength a maximum?
What is the electric field strength at this point?
A sphere of radius and surface charge density is positioned with its center distance from an infinite plane with surface charge density . At what distance from the plane, along a line toward the center of the sphere, is the electric field zero?
Reproduce FIGURE Q23.2on your paper. For each part, draw a dot or dots on the figure to show any position or positions (other than infinity) where .
A plastic rod with linear charge density is bent into the quarter circle shown in FIGURE. We want to find the electric field at the origin.
a. Write expressions for the - and -components of the electric field at the origin due to a small piece of charge at angle .
b. Write, but do not evaluate, definite integrals for the - and -components of the net electric field at the origin.
c. Evaluate the integrals and write in component form
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