What Are Active Loads and Why Are They Used in Electronics?

[timkuc]

What is a active load? Why we use the active load ?
Please don't just say ,give examples also (in simple words please don't give links . Describe in ur words)

 

[davenn]

did you even bother to google "what are active loads" ?

http://en.wikipedia.org/wiki/Active_load

we expect people to do at least a bit of basic research, then ask questions on anything they may not understand

cheers
Dave