1. A wire loop is bent into the shape of a square with each side of length 4.5 cm. The loop is placed horizontally on

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1. A wire loop is bent into the shape of a square with each side of length 4.5 cm. The loop is placed

horizontally on a tabletop with two of the sides oriented north/south and two of the sides oriented

east/west. A battery is connected so that a current of 24 mA is produced around the loop; the current

flows in the clockwise direction looking from the top. What is the force produced by the earth’s magnetic

field on each section of current-carrying wire? What is the overall torque on the loop? What would the

torque be if the same length of wire were bent into a circle instead of a square (assuming the same

current)?