PhysicsHardHigh School (11–12)Electricity & Magnetism › Magnetic Effects of CurrentJEE MainAPA-LevelIB
Created by StemPy LabA single layer of insulated wire, mm across, is wound closely on a long tube. It carries A. What is the field well inside the winding?
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← A long round wire of radius 6 mm carries a current spread evenly over its section. Outside the wire, at what distance from the axis is the field equal to the field at a point 4 mm from the axis inside the wire?A toroid has 650 turns and carries 3 A. Its inner radius is 10 cm and its outer radius is 14 cm. By how much is the field at the inner edge larger than the field at the outer edge? →
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