A straight, non conducting plastic wire 9.50 centimeter long carries a charge density of 130 nC/m distributed uniformly along its length. It is lying on a horizontal tabletop.

Part A Obtain the magnitude and direction of the electric field this wire produces at a point 5 centimeter directly above its midpoint.

Part B If the wire is now bent into a circle laying flat on the table, obtain the magnitude and direction of the electric field it produces at a point 5 centimeter directly above its center.