Physics
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Aiming to determine how the magnetic field of a perfect toroid having 300 turns varies with distance from the torus center, an electronic circuit engineer sends a 6.00 A current into the toroidal coil. The toroid's internal and external diameters are 16.0 cm and 26.0 cm, respectively. Find the magnetic field magnitude measured by the engineer at i) 6.0 cm, ii) 10.0 cm, and iii) 15.0 cm from the toroid's central axis.
A rod is bent into a semi-circular shape with a radius of 0.5m, as shown below. A coil of 1500 turns carrying a current of 2A is wrapped uniformly around it. Describe the magnetic field's shape in this partial toroid.
A toroidal transformer used in a modern audio system has N turns of copper wire going around a soft magnetic core as shown below. Is the magnetic field inside the toroidal transformer uniform? Why or why not?
An underwater communication cable has been laid between two islands. The cable is 500.0 m long and has been constructed as a solenoid with 5000 turns. The inductance of the cable has been measured as 100.0 mH. Calculate the magnetic field strength inside the cable when a current of 2.0 A is passed through it.
What are the possible values for the magnetic field 𝐵 within a doughnut-shaped coil that has an inner diameter of 60 cm, an outer diameter of 65 cm, and carries a direct current of 15 A through its 500 loops?