R I R/2

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 21CQ: What is wrong with the following expressions? How can you correct them? (a) C=AB , (b) C=AB , (c)...
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A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure. The current in the straight wire points to the right and is of magnitude I = 1.0 A. The magnetic field at the center of the loop is zero. What is the magnitude and direction of the current in the loop? 

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