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March 27, 2015

Homework Help: physics

Posted by anonymous on Monday, November 1, 2010 at 1:26am.

A long, straight metal rod has a radius of 4.50 cm and a charge per unit length of 30.0 nC/m. Find the electric field at the following distances from the axis of the rod, where distances are measured perpendicular to the rod.

a)3.00 cm
b)13.5 cm
c)120 cm

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