Several electromagnetic relationships are expressed using Einstein A and B Coefficient

- ${\boldsymbol {E}}={\frac {A}{B^{0.5}}}$

- ${\boldsymbol {B}}={\frac {A}{c*B^{0.5}}}$

**Electric charge squared**

- $Q^{2}={\frac {c^{4}}{A^{2}*B}}$

**Electric charge**

- $Q={\frac {c}{A*(\pm B^{0.5})}}$