![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
Sketch of the tokamak device. The toroidal magnetic field is produced... | Download Scientific Diagram
![Obtain the expression for the magnetic energy stored in a solenoid in terms of magnetic field B , area A and length l of the solenoid. Obtain the expression for the magnetic energy stored in a solenoid in terms of magnetic field B , area A and length l of the solenoid.](https://dwes9vv9u0550.cloudfront.net/images/1919127/456009ef-ac6e-42b1-a842-9100e2c0b546.jpg)
Obtain the expression for the magnetic energy stored in a solenoid in terms of magnetic field B , area A and length l of the solenoid.
![Magnetic flux density lines of an axially magnetized toroidal permanent... | Download Scientific Diagram Magnetic flux density lines of an axially magnetized toroidal permanent... | Download Scientific Diagram](https://www.researchgate.net/publication/3112956/figure/fig2/AS:669016595124228@1536517394748/Magnetic-flux-density-lines-of-an-axially-magnetized-toroidal-permanent-magnet-3.png)