Micro DC Machines

 Generatorsare usually operated in more protected locationsand therefore their construction is generally of open type.

Motors are used in locations where they are exposedto dust,moisture, fumes and mechanical damage.
 Thus, motors require protective enclosures for example, drip proof, fire proof etc.

The Right-hand Rule
The Fleming’s left hand rule is used to determine the direction that conductor carrying current will be moved in a magnetic field.