The figure shows, in cross section, two long parallel wires that are separated by distance d = 18.6 cm.  Wire 1 carries 4.23 A out of the page, and wire 2 carries 2.84 A into the page as shown in the diagram.  (a) At what location along the y-axis is the net magnetic field from these two current carrying wires zero?  (b) In unit vector notation, what is the net magnetic field at point P at distance R = 34.2 cm, due to the two currents?  Include a diagram for these situations

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A: I = 20 A L = 1 cm = 1 x 10-2 m B = 0.588 T F = ?

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Q: Two long, parallel wires carry currents of I1 = 2.70 A and I2 = 5.15 A in the directions indicated…

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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.