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Posted: **Wed May 25, 2022 6:19 am**

: Four Long Copper Wires Are Parallel To Each Other Their Cross Sections Forming The Corners Of A Square With Sides A 2 1 (29.45 KiB) Viewed 25 times

Four long copper wires are parallel to each other, their cross sections forming the corners of a square with sides a = 20 cm. A 20 A current exists in each wire pointing out of the screen. What are the magnitude and direction of the magnetic field at the center of the square? US O a O