There is "AB" as a straight-line wire carrying a current I1= 4A. EFGH is a rectangular loop carrying a current I2=2A thats going in counterclockwise direction. The rectangular loop EFGH is placed at 5 cm from wire "AB" and the dimension of the rectangular loop is EF=10 cm and GH=5 cm -What's the direction of the net force acting on rectangular loop, EFGH (upward,downward, to the left, etc.)

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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.