Unit ET
Name exatesla
Category Magnetic Flux Density
Details An exatesla (ET) is a unit of magnetic flux density in the International System of Units (SI). It represents a very large value of magnetic field strength. One exatesla (1 ET) is equal to 10^18 teslas (T), where the tesla is the base unit of magnetic flux density in the SI system.

Magnetic flux density is a measure of the strength or intensity of a magnetic field at a given point in space. In practical terms, magnetic flux density is an indication of how concentrated the magnetic field lines are in a particular area. It is typically used in the study of electromagnetism, in applications like electric motors, generators, transformers, and magnetic storage devices.

The exatesla is a rarely used, extremely large unit of magnetic flux density, as the typical magnetic fields experienced in everyday life are much smaller. For example, the Earth's magnetic field at its surface ranges from 25 to 65 microteslas (µT), which is a billion times smaller than one exatesla. This unit is more relevant in the context of advanced scientific research, like studies involving superstrong magnetic fields or in theoretical physics.