A flat, circular coil of 120 turns has a radius of 18 cm and carries a current of 3.0 A. What is the magnitude and direction of the magnetic field at a point on the axis of the coil at a distance from the center equal to the radius of the coil?

Q: An infinitely long wire carrying a current of 4.40 A is bent at a right angle in such a manner that…

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Q: The magnitude of the magnetic field at a point 88.0 cm from the central axis of a long straight wire…

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Q: The figure below shows two wires carrying currents of I = 4.95 A in opposite directions, separated…

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Q: A DC power line for a light-rail system carries 1150 A at an angle of 27° to the Earth’s 5.00 × 10-5…

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Q: Three long, parallel conductors each carry a current of I = 1.58 A. The figure below is an end view…

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Q: A circular coil of wire of 200 turns and diameter 4 cm carries a current of 5 A. It is placed in a…

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Q: An alpha particle (a He nucleus, containing two protons and two neutrons) with a mass of…

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Q: A 6.0 A current flows through the wire shown in the figure. Take x = 6.00 cm and y = 5.00 cm. P y…

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Q: A high-voltage power line 20 m above the ground carries a current of 2000 A horizontally to the…

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Q: Two straight parallel wires are separated by 6.0 cm. There is a 2.0 A current flowing in the first…

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Q: Green turtles are thought to navigate by using the dip angle of the earth’s magnetic field. To test…

A: Concept used: Current carrying coil produces magnetic field.  Vertical component of Earth's magnetic…

Q: A long wire is bent to form 46-turns of circular loop. Each loop has an area of 3.7 cm2. Determine…

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Q: uniform magnetic field passes through a surface of area A as shown in the figure. If the area vector…

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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.