A toroid having inner radius 10cm, outer radius 11cm and 10000 turns is carrying current 2A. Magnetic field at a point at distance 5cm from the centre of its curvature is
![Toroidal Magnetic Field Lines . Fusion Energy.Circular Rings Flow Stock Illustration - Illustration of fusion, arrows: 185806501 Toroidal Magnetic Field Lines . Fusion Energy.Circular Rings Flow Stock Illustration - Illustration of fusion, arrows: 185806501](https://thumbs.dreamstime.com/z/torus-shape-circular-magnetic-lines-force-d-rendering-illustration-concept-toroidal-magnetic-field-lines-fusion-energy-185806501.jpg)
Toroidal Magnetic Field Lines . Fusion Energy.Circular Rings Flow Stock Illustration - Illustration of fusion, arrows: 185806501
![electromagnetism - External magnetic field strength of toroidal coil at a distance from the center - Physics Stack Exchange electromagnetism - External magnetic field strength of toroidal coil at a distance from the center - Physics Stack Exchange](https://i.stack.imgur.com/6fgh5.png)
electromagnetism - External magnetic field strength of toroidal coil at a distance from the center - Physics Stack Exchange
![a) Using Biot - Savart's law, derive the expression for the magnetic field in the vector form at a point on the axis of a circular current loop (b) What does a a) Using Biot - Savart's law, derive the expression for the magnetic field in the vector form at a point on the axis of a circular current loop (b) What does a](https://dwes9vv9u0550.cloudfront.net/images/5018860/9f17bade-eadc-4b45-8f7a-7b832c39cdc8.jpg)