A straight, nonconducting plastic wire 7.50 cm long carries a charge density of 115 nC/m distributed uniformly along its length. It is lying on a horizontal tabletop.
part a :
Find the magnitude and direction of the electric field this wire produces at a point 6.00 cm directly above its midpoint.
part b :
If the wire is now bent into a circle lying flat on the table, find the magnitude and direction of the electric field it produces at a point 6.00 cm directly above its center.
Answers: 1
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