What does esh mean in physics?

In the field of physics, esh is an abbreviation, which refers to the unit of electric field strength, and its English full name is the electrostatic unit of electric field strength. ESH is defined as: if the electric field intensity generated by a point charge in vacuum is ESU, the electric quantity of the point charge is the electrostatic charge of ESU.

ESH is a very important physical unit because it is often used in electromagnetism and electric field calculation. The calculation formula of ESH is E=F/q, where e is the electric field strength (ESH), f is the electric field force, and q is the charge amount. ESU/cm is the unit of ESH, and its typical values are between10.5 v/m/m and10.6 v/m/m in the international system of units.

Although the ESH unit has been eliminated in modern physics, as a historical unit, it still retains some value. ESH is the unit to quantify charge, and charge is the basis to define electric field and magnetic field. In addition, ESH has a good application in electric fields with relatively small values. On some specific physical problems, ESH is still an irreplaceable unit.