Mahway I Math Probom Solver Chapter $9 What is Tha Directios O The Magnetic Fiel

Question

Mahway I Math Probom Solver Chapter $9 What is Tha Directios O The Magnetic Field That P. 1 Cagg com My Notes Ask Your Teache eight turn col encloses an eliptical area having a major axis of 40.0 em and a minor axis of 30.0 om (Fig P19.23). The coil lies in the plane of the page and has a 5.75 A current frowing clock woe around it. If the coll is in a uniform magnetic field of 1.9S × io. t directed toward the left of the page, she is the magnitude or the te que on the con Anti The area a an elipse is A tab, where a and b are, respectively, the sersimajor and semiminor axes of the ellose.) 3380-3 Your response differs from the correct answer by more than 100%. N.m O1 Figure P19.23 Subit Answe Save ProgressPractice Another Version 10 0-10 points SerCP 19.P02 Acopper wire is . 00 m bong and has a cross-sectional area of 1.00 ×10-4 m2. This wire forms a one turn My Notes Ask Your Teache o.200 V loep is placed in a unform magnatle fatd of megnitude 0-400 T, mhot is che maximum terque that can act on it? The oop in the shape of square and is then connected to à battery that applies . 0-m. 400 T,-het-the maximum torque that can act on it? The resistivity of copper is 1.7 x 10

Explanation / Answer

Solution: The formula for the torque on any shaped plane current loop which has a current "i", area "A" and "N" turns is given by:-

T = N(iA) X B

In this case "B" is perpendicular to vector (iA) and the magnitude of the torque is simply;

T = NiAB
= Ni(pi)abB ,[ here a and b are semi major/minor axis of the ellipse]
= (8)(5.75)(pi)(.4/2)(.3/2)(1.95x10^-4)
= 0.000844 N-m

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