1.

To keep the B.J.T. in the active region, what should be the relation between R1 and R2?(a) R1 >> R2(b) R1

Answer»

Correct CHOICE is (b) R1 << R2

For explanation I would say: The feedback resistance should be MUCH smaller than the COLLECTOR resistance SINCE we NEED to reduce the sensitivity of the collector current to the current gain. Typically, R2 should be lower than R1 by a factor of β.



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