can someone do and explain 30.3 and 30. 4 quick quizzes. magnetic field of curre

Question

can someone do and explain 30.3 and 30. 4 quick quizzes.

magnetic field of current configurations having a high degree of symmetry. Its use is similar to that of Gauss's law in calculating electric fields for highly symmetric charge distributions Quick Quiz 30.3 Rank the : magnitudes of B . (13 for Figure 30.11 (Quick Quiz 30.3) Four closed paths around three current-carrying wires. i 5A1 the closed paths a through : din Figure 30.11 from great- è est to least. I A 02 A You may wonder why we would choose to evaluate this scalar product. The origin of Ampère's law is in 19th-century science. in which a "magnetic charge" (the supposed analog to an isolated electric charge) was imagined to be moved around a circular field line. The work done on the charge was related to B d, just as the work done moving an clectric charge in an electric field is related to E ds. Therefore, Ampère's law, a valid and useful principle, arose from an erroneous and abandoned work calculation! Unless otherwise roned, all content on this page is Cengage Learning Q uick Quiz 30.4 Rank the magnitudes of B ds for the closed paths a through d in Figure 30.12 from greatest to least. Figure 30.12 (Quick Quiz 30.4) Several closed paths near a single current-carrying wire at

Explanation / Answer

From Amperes law, whichever loop has the highest enclosed current, will have highest Integral. therefore answers for both are as below:

30.3 C > a > d > b

30.4 a = c = d > b

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