need help for question ddddddddddddddddd thanks a lot d. Use the reasoning you d

Question

need help for question ddddddddddddddddd

thanks a lot

d. Use the reasoning you developed in part a to find the direction that current is passing through loop d (in region III): A current distribution (not shown) creates the spatially varying magnetic field shown at right. In region I the magnetic field increases in magnitude toward the bottom of the page. In region lithe magnetic field is uniform, and in region III the magnetic field is zero. a. Consider loop a (in region I). i. Draw and label an area vector for loop a on the diagram. ii. Is the line integral of the magnetic field around loop a positive, negative, or zero? Explain. iii. Which direction is net current passing through the loop? Use Ampere?s law to explain your answer. If no current passes through the loop, state so explicitly.

Explanation / Answer

There's no B-field in loop D.

Thus, it encloses no current.

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