Intrinsic and extrinsic motivation

Answer 1

Intrinsic is the term explaining phenomenon due to internal qunatities.

Extrinsic is the term explaining the same phenomenon due to foreign materials added ie external materials.

In case of pure Si or Ge, intrinsic conductivity becomes possible as temperature increases.

As we add trivalent or pentavalent impurities along with Si or Ge, then we get extrinsic conductivity.

Answer 2

Intrinsic and extrinsic motivation are the two main categories of motivation. Intrinsic simply means internal while extrinsic means external motivation.