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QUESTION
A line of positive charged is formed into a semicircle of radius R = 60cm. The charged per unit length along the circle is described by the...
A line of positive charged is formed into a semicircle of radius R = 60cm. The charged per unit length along the circle is described by the expression lambda=lambda subzero cos theta. the total charge on the semicircle is 12.0 micro coulomb. calculate the total force on a charge of 3.0E-6 coulomb placed at the center of the curvature.
