# Question #532da

##### 1 Answer

#### Answer:

This is the mathematical expression of the fact that **Force** is the gradient of **Potential Energy**.

#### Explanation:

A potential energy can be defined for any purely conservative force. Potential energy is a scalar and Force is a vector.

The force vector

When a magnet of **dipole moment** (

In the **Stern-Gerlach Experiment** the external magnetic field is directed parallel to

The approximately symbol is there because it is not practical to get an inhomogeneous magnetix field with purely

When silver atoms carrying a magnetic moment enters this inhomogeneous magnetic field, it will experience a force depending on the relative strengths and directions of its magnetic moment vector (