An eight turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of 30.0 cm (Fig. P19.23). The coil lies in the plane of the page and has a 6.00 A current flowing clockwise around it. If the coil is in a uniform magnetic field of 2.03 ✕ 10-4 T, directed toward the left of the page, what is the magnitude of the torque on the coil? (Hint: The area of an ellipse is A = ?ab, where a and b are, respectively, the semimajor and semiminor axes of the ellipse.)

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Q: A flat circular coil of wire with diameter of 5.00 cm has 10 turns and carries a current of 1.25 mA.…

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Q: A flat circular coil of wire with diameter of 5.00 cm has 10 turns and carries a current of 1.25 mA.…

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Q: An eight-turn coil encloses an elliptical area having a major axis of 40.0 cm and a minor axis of…

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Q: A rectangular coil consists of N = 140 closely wrapped turns and has dimensions a = 0.400 m and b =…

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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.