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Question

Cengage x e Search Textbook Solut X/ Chapter 19 G an eight turn coil enci ? e Physics Archive | April x- yi WebAssign x Cwww.webassign.net/web/Student/Assignment-Responses/submit?dep 17876956 drive D chem c 1,1,1-TRIFLUOROPRC ? blackboard??lemonade L hair O biochem N negative x N negative z N parallel to x-z plane at 45 to both +x and +z directions Apps ? Bookmarks fy paper rating kelsey Other bookmark 040 040 057 cd da 9. -10 points SerCPT 19.P 023. My Notes Ask Your Teach An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm (Fig. P19.23). The coil lies in the plane of the page and has a 5.55 A current flowing clockwise around it. If the coil is in a uniform magnetic field of 2.05 × 10-4 T, directed toward the left of the page, what is the magnitude of the torque on the coil? (Hint: The area of an ellipse is A nab, where a and b are, respectively, the semimajor and semiminor axes of the ellipse.) N m 441.0 m 30.0cm Figure P19.23 Submit Answer Save Progress Practice Another Version 10. -10 points SerCP7 19.P.026. My Notes Ask Your Teach A copper wire is 7.00 m long and has a cross-sectional area of 2.00 × 10-4 m2. This wire forms a one turn loop in the shape of square and is then connected to a battery that applies a potential difference of 0.100 V. If the loop is placed in a uniform magnetic field of magnitude 0.500 T, what is the maximum torque that can act on it? The resistivity of copper is 1.7 x10 O Type here to search 4/15/2018

Explanation / Answer

Given,

   N = 8
   B = 2.05 x 10-4T
   I = 5.55 A
A = ? a b = ? (0.200 m) (0.150m) = 0.094 m2

   as from the given we can see that the field isparallel to the plane of the loop we get
   ? = 90°
   ? = N I A B sin?
   = (8) (5.55 A) (0.094 m2) (2.05 x 10-4T) sin90° = 8.58 x 10-4 N.m

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