A 50 cm × 85 cm rectangular loop of wire is located in a region of uniform magnetic field with a magnitude of B​0​​=2.46 Telsa, and oriented perpendicular to the wire loop. The wire is reshaped into a circular loop of radius r = 43 cm. What is the change in the magnitude of the the magnetic flux through the loop as a result of this change in shape?

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A: Due to symmetry of the problem, Ampere's Law can be used to find the magnetic field.

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Q: A long straight wire carries a current of 40 A in a region where a uniform external magnetic field…

A:

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A:

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A:

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A:

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A:

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A:

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A: The magnetic field here is

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Q: A long straight wire carries a current of 40 A in a region where a uniform external magnetic field…

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A: Magnetic field

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.