# Hi(adsbygoogle = window.adsbygoogle || []).push({});

# My instructor of EM course wrote two formulas on the blackboard and asked whether they are correct and what their names are. (He does not know the answers too)

# These formulas give [tex]V[/tex] and [tex]\vec{A}[/tex], given [tex]\vec{E}[/tex] and [tex]\vec{B}[/tex]

[tex] V(\vec{r},t) = - \vec{r} \cdot \int_{0}^{1} d\lambda \vec{E}(\lambda\vec{r},t) [/tex]

[tex] \vec{A}(\vec{r},t) = - \vec{r} \times \int_{0}^{1} \lambda d\lambda \vec{B}(\lambda\vec{r},t) [/tex]

# If we'll learn their names we can continue to investigate the subject further.

# Thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# What are the names of these formulas in EM

**Physics Forums | Science Articles, Homework Help, Discussion**