A circular coil of wire carries 50 mA of current. The coil has 50 turns and an area of 2.0 cm2. A magnetic field of 0.300 T is present, oriented parallel to the plane of the coil. What torque acts on the coil?

Q: A circular coil 12.0 cm in diameter and containing nine loops lies flat on the ground. The Earth's…

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Q: A uniform magnetic field points into the page. A long, thin wire goes horizontally to the right,…

A: (I guess the B is at the right end of the wire as the diagram is not given) The diameter of the loop…

Q: A solenoid has 300 turns wound around a cylinder of diameter 1.20 cm and length 14.0 cm. If the…

A: Since the length of the solenoid is quite large in comparison with its diameter, the magnetic field…

Q: A circular coil (radius = 0.25 m) has 143 turns and is in a uniform magnetic field. If the…

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Q: A conducting rod is positioned between two poles of a large magnet, with 11 cm of the rod within the…

A: Given data :- Length L = 11 cm = 0.11 m Magnetic field B = 0.085 T Magnetic force Fm = 9.2×10-3 N…

Q: A 144-Ω light bulb is connected to a conducting wire that is wrapped into the shape of a square with…

A: Given,

Q: An air-core solenoid with 64 turns is 8.00 cm long and has a diameter of 1.20 cm. When the solenoid…

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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.