In mathematics, a toroid is a surface of revolution with a hole in the middle. The axis of revolution passes through the hole and so does not intersect the surface. [1] . For example, when a rectangle is rotated around an axis parallel to one of its edges, then a hollow rectangle-section ring is produced.

Toroid is defined as the circular ring with numerous turns of enamelled wire. Learn about the difference between solenoid and toroid and their similarities. Also, learn about the magnetic field of toroid and its formula along with applications here.

The meaning of TOROID is a surface generated by a closed plane curve rotated about a line that lies in the same plane as the curve but does not intersect it.

The toroid is a useful device used in everything from tape heads to tokamaks. Finding the magnetic field inside a toroid is a good example of the power of Ampere's law. The current enclosed by the dashed line is just the number of loops times the current in each loop. Amperes law then gives the magnetic field by.

Sep 4, 2022 · A toroid is an electromagnetic device consisting of a conducting wire wound into a coil around a metallic core bent into the shape of a circle. It is similar to a solenoid except that it is bent. Like any other electromagnetic device, a toroid produces a magnetic field when current is sent through the wire.

What is a Toroid? A toroid is a doughnut-shaped object, which in physics, particularly electromagnetism, refers to a coil of wire wound around a circular ring. This shape is crucial because it confines the magnetic field to its core. Imagine a doughnut or a ring-shaped cushion. A toroid is very much like that in shape.

Apr 10, 2025 · A toroid is a donut-shaped coil closely wound with one continuous wire, as illustrated in part (a) of Figure \(\PageIndex{4}\). If the toroid has N windings and the current in the wire is I, what is the magnetic field both inside and outside the toroid? Figure \(\PageIndex{4}\): (a) A toroid is a coil wound into a donut-shaped object.

Apr 8, 2025 · A surface of revolution obtained by rotating a closed plane curve about an axis parallel to the plane which does not intersect the curve. The simplest toroid is the torus. The word is also used to refer to a toroidal polyhedron (Gardner 1975).

Jan 26, 2025 · A toroid is a doughnut-shaped object, often used in electrical circuits. It is essentially a hollow circular ring with numerous turns of a wire wound so closely that there is almost no space between the turns.

Feb 20, 2022 · A toroid is a type of solid of revolution with the apperence of a hollow circular ring or a doughnut-shaped solid. A surface of revolution is created by revolving a plane curve about a straight line that lies in the same plane, the axis of rotation.