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A current loop lies in the xy plane of an xyz coordinate system, with the current circulating counterclockwise when viewed looking down the positive z axis toward the origin. The loop experiences a torque about the x axis that is counterclockwise when viewed looking down the positive x axis toward the origin. Part A Describe the direction of the uniform external magnetic field responsible for this torque.

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The description of the direction of the uniform external magnetic field should be explained below:

The direction of uniform external magnetic field:

At the time of current circulating counterclockwise when it should be looking down the positive z-axis toward the origin, the direction of the magnetic moment should be along the positive z axis.  In the given situation, forces providing increment to torque tend to rotate the coil in counterclockwise rotation. Due to this, torque is positive, and towards the positive direction of x-axis.

So here the direction should be

= Negative y —direction

learn more about direction here: https://brainly.com/question/25825478

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