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See the answer to what are the limitations of fossil fuels, they will always be the same.
current mirror circuit produce more stability as compared to biased circuit.
low accuracy
If you go to the given link you will see the circuit of a current mirror using Op-Amp. And you can easily see how it is biased.
take a look on wikipedia and search for current mirror. There are two tranzistors :)
Idl but i love your question haha
ANSWER (current mirror) A current mirror circuit uses an amplifier to copy a current flowing in one leg of the circuit into another leg. One common arrangement uses four BJTs (two NPNs and two PNPs) and two resistors. Others are more or less complicated depending on linearity and temperature stability required for the application.
Heat, mainly, and the technological limitations of current drilling equipment.
In simple MOSFET current mirror, the load current does not follow a linear relationship with reference current (ie for short channel MOSFET's multiplying factor due to channel length modulation cannot be neglected). But by cascoding the output resistance can be increased and since output resistance follows an inverse relationship with lambda (channel-length modulation parameter), the multiplying factor due to channel length modulation reduces to one and a linear relationship is obtained between reference and load current.
galvanometer is a device use to measure current.
In the current, FAA-approved flight manual, approved manual
A technique (using transistors) to create a current source in one part of a circuit that is proportional to the current in another part. It's in wikipedia, too.