In the figure, two circular arcs have radii a = 14.5 cm and b = 11.5 cm, subtend angle = 78.0°, carry current i = 0.398 A, and share the same center of curvature P. What are the (a) magnitude and (b) direction (into or out of the page) of the net magnetic field at P? (a) Number i (b) Units

In the figure, two circular arcs have radii a = 14.5 cm and b = 11.5 cm, subtend angle = 78.0°, carry current i = 0.398 A, and share the same center of curvature P. What are the (a) magnitude and (b) direction (into or out of the page) of the net magnetic field at P? (a) Number i (b) Units

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 21P: Two long wires, one of which has a semicircular tend of radius R, are positioned as shown in the...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

In the figure, two circular arcs have radii a = 14.5 cm and b = 11.5 cm, subtend angle 0 = 78.0°, carry current i = 0.398 A, and share the
same center of curvature P. What are the (a) magnitude and (b) direction (into or out of the page) of the net magnetic field at P?
(a) Numberi
(b)
Units

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