Lines of Charge: Two Long Straight Parallel Lines, #1 and #2

question 8

Multiple Choice

Lines of charge: Two long straight parallel lines, #1 and #2, carry uniform positive linear charge densities. The charge density on line #2 is twice as great as the charge density on line #1. The locus of points where the electric field due to these lines is zero is

• A) along a line between the lines closer to line #2 than line #1.
• B) at a point midway between the lines.
• C) along a line perpendicular to lines #1 and #2.
• D) along a line between the lines closer to line #1 than line #2.

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Definitions:

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