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A charged nonconducting rod, with a length of 1.25 m and a cross-sectional area of 5.66...

A charged nonconducting rod, with a length of 1.25 m and a cross-sectional area of 5.66 cm2, lies along the positive side of an x axis with one end at the origin. The volume charge density ? is charge per unit volume in coulombs per cubic meter. How many excess electrons are on the rod if ? is (a) uniform, with a value of -3.26

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Here is what I solved before, please modify the figures as per your question. Please let me know if you have further questions. Ifthis helps then kindly rate 5-stars.

A charged nonconducting rod, with a length of 3.30 m and a cross-sectional area of 5.72 cm2, lies along the positive side of an x axis with one end at the origin. The volume charge density is charge per unit volume in coulombs per cubic meter. How many excess electrons are on the rod if ? is (a) uniform, with a value of -2.61

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