Your answer is partially correct. The figure shows wire 1 in cross section; the wire is long and straight, carries a current of 4.20 mA out of the page, and is at distance d₁ = 2.48 cm from a surface. Wire 2, which is parallel to wire 1 and also long, is at horizontal distance d₂ = 5.14 cm from wire 1 and carries a current of 6.83 mA into the page. What is the x component of the magnetic force per unit length on wire 2 due to wire 1? Number i 9.0645e-11 Units N/m

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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.