Unit YT
Name yottatesla
Category Magnetic Flux Density
Details A yoctotesla (yT) is a very small unit of magnetic flux density, which is used to measure the strength of a magnetic field. It is part of the International System of Units (SI) and has a scale factor of 10^-24. In other words, 1 yoctotesla is equal to 10^-24 tesla (T).

Magnetic flux density, also referred to as magnetic induction or magnetic field density, is a measure that characterizes the influence of a magnetic field on the movement of charged particles in the vicinity. It is generally represented by the symbol B and measured in units of tesla (T).

Since the tesla is a relatively large unit in some contexts, smaller units such as nanotesla (nT) and picotesla (pT) may be more appropriate for describing weaker magnetic fields. In situations where even smaller units are necessary, yoctotesla (yT) can be used to describe extremely weak magnetic fields.

For example, the Earth's magnetic field strength varies from about 25 to 65 microteslas (µT), which is equivalent to 25 × 10^12 to 65 × 10^12 yoctoteslas. This demonstrates that the yoctotesla is an incredibly small unit, mainly used for extremely low strength magnetic fields in scientific research or highly sensitive applications.