A long, straight wire of radius R carries a current I that is distributed uniformly over the cross-section of the wire. At what distance from the axis of the wire is the magnitude of the magnetic field a maximum?

Q: A circular loop of diameter 15.1 cm is carrying a current of 4.7 A. What is the magnitude of the…

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Q: An infinitely long, solid, cylindrical conductor of radius R carries current I. Which graph…

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Q: Four long, parallel conductors carry equal currents of I = 5.40 A. The figure below is an end view…

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Q: An electron moves in a circle of radius r= 6.19 x 10-11 m with a speed 2.47 x 106 m/s. Treat the…

A: Given:-        From the data                      r = 6.19×10-11 mv = 2.47×106 m/sB = 6.04×10-3T

Q: If a rectangular loop of wire is placed between the two poles poles of a magnet, with the dimensions…

A: Given, dimesions of the rectangular loop,w = 0.30 mL = 1.2 m magnitude of magnetic field, B = 0.90 T

Q: A long cylindrical conductor of radius R carries a current i as shown in figure. The current density…

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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.